The vast majority of the 33 volumes listed as "diaries" in the Raymond Pearl Papers might be better described as common-place books, though the collection includes at least six unbound volumes that might be accurately classified as diaries. Most of these entries pertain to various recreational European trips taken between 1905-1928. The 1905 diary includes numerous accounts of sightseeing in London, including visits to Kew Gardens (9/28), the Tower of London (9/30), and a theater, which Pearl compares to that of the United States (10/18). Pearl uses the next two journals, from 1916 and 1917 respectively, as field notebooks with miscellaneous accounts. These volumes will likely most interest scholars researching his biography and contributions to biology. A journal from 1918 includes a mix of typed and handwritten entries documenting a trip to Europe by steamship. Finally, the last two volumes might very well have been co-authored by both Raymond and Maud Dewitt Pearl. The first, a loosely bound journal bearing the dates "1924, 1927" appears to have been maintained by both Pearls. The second, dated 1928, appears to have been kept by Maud, especially given all of the third-person references to Raymond Pearl ("R.P."). Both "1924, 1927" and "1928" recount travels in England, France, and, to a lesser extent, Germany. These diaries, while quite limited in nature, may interest scholars researching Europe in the early-twentieth century, biology, and the history of science more broadly.
 

Theoretical physicist Edward Uhler Condon documents three decades of his professional career through 35 volumes of appointment books and planners (1939-1971). Although his entries are necessarily sparse, these notebooks ought to interest scholars researching his professional activities in government, industry, and the academy (most especially his tenure at Princeton University). Condon recounts a range of professional engagements, including his teaching schedule, meetings, conferences, proposals, and book manuscript development. Notably, early entries register some religious practices (Jewish), such as meetings with rabbis (e.g. 4/16/1939, 10/19/1939), and mounting concerns related to World War II (beginning 3/16/1939). Later journals document his rising professional star, including a memo inviting him to participate in a meeting at Library of Congress (11/7/1949) and National Science Foundation (11/9/1957). Researchers interested in his career will find detailed records of his professional networks, including the names, contact details, and occasionally business cards of associates.
 

The Herbert Spencer Jennings Papers contain at least 17 volumes of diaries and various other workbooks, notebooks, and commonplace books with which researchers may supplement those volumes. Although the volumes span 1903-1945, Jennings maintains them most regularly between 1924-1945, providing detailed insights into his research, teaching, professional networks, writing and publications in the fields of microbiology, genetics, and, to a lesser degree, eugenics. For a short period (1924-27) he maintains some entries in shorthand, but returns to a long form thereafter. Integrated throughout his entries are occasional pieces of ephemera, including notes from students (e.g. 4/8/1929), business cards (11/4/1931), newspaper clippings (7/31/1933), and even the passport photos for he and his wife, Mary Louise Spencer (6/27/1935). Researchers interested in his biography, may choose to begin their research using the volume dated 3/11/1938, which contains entries as late as 1/1/1945. That volume encompasses his retirement from Johns Hopkins University (1938), the death of his first wife, Mary (also in 1938), and his remarriage to Lulu Plant Jennings (1939). Jennings' extended trips abroad, including Italy (1903-4), Japan (1931-33), and England (1933-36), may interest scholars researching twentieth-century Europe. Notably, he maintained separate notebooks with further records and ephemera related to both of the latter trips, including two notebooks related to Japanese language and two large scrapbooks related to his time at Oxford. Finally, scholars specifically interested in his career may take an interest in his sporadic notes concerning eugenics (e.g. 1/27/1933) and Charles Davenport, who also maintained an extensive set of diaries available at the APS (Mss.B.D27). For example, nested inside the diary dated 10/12/1928-7/10/1929, Jennings encloses a note addressed to a Mrs. Lutz (5/31/1929), in which he congratulates her on the twenty-fifth anniversary of an institute, which is almost certainly Davenport's Carnegie Institute (opened 6/11/1904).
 

Hiltzheimer provides a detailed and textured account of the young republic through scrupulous attention to the Constitutional Convention, election and reelection of George Washington, the Whiskey Rebellion, the Wyoming Valley incident, and the ascension of John Adams. Thanks to his career in Philadelphia politics (elected as a representative of the city in the Assembly in 1786), he furnishes first-hand accounts of George Washington, the funerals of Benjamin Franklin and David Rittenhouse, and numerous entries devoted to Pennsylvania luminaries including John and Clement Biddle, Joseph Morris, Levi Hollingsworth, Henry Drinker, and Timothy Matlack.
 
Hiltzheimer's journal also records family and personal details, including plague of locusts in 1766 and 1783, a great fire in 1794, and the death of his wife (3/11/1790) and loss of both his son and daughter to Yellow Fever (11/28/1793 and 12/29/1794 respectively). Indeed, his account of the Yellow Fever epidemic in Philadelphia is particularly exhaustive, with daily records of burials between 9/19-12/31/1793, as well as further accounts during the 1797 crisis, during which he ultimately contracted the disease that led to his death in September 1798.

The Jacob Hiltzheimer Diary spans 28 volumes and offers insight into the social life and customs of Philadelphia between the late colonial period to the early republic (1765-1798). Hiltzheimer describes a wide range of events, such as sleigh riding to ice skating to attending a large celebration of King George's Birthday on the banks of the Schuylkill with over 380 Philadelphians (before Independence). During the imperial crisis, Hiltzheimer's observations provide an interesting perspective on the events happening within the city, including the repeal of the Stamp Act, French troop movements, Cornwallis's surrender, and ensuing mob violence against suspected loyalists (e.g. 10/24/1781).
 
Hiltzheimer provides a detailed and textured account of the young republic through scrupulous attention to the Constitutional Convention, election and reelection of George Washington, the Whiskey Rebellion, the Wyoming Valley incident, and the ascension of John Adams. Thanks to his career in Philadelphia politics (elected as a representative of the city in the Assembly in 1786), he furnishes first-hand accounts of George Washington, the funerals of Benjamin Franklin and David Rittenhouse, and numerous entries devoted to Pennsylvania luminaries including John and Clement Biddle, Joseph Morris, Levi Hollingsworth, Henry Drinker, and Timothy Matlack.
 
Hiltzheimer's journal also records family and personal details, including plague of locusts in 1766 and 1783, a great fire in 1794, and the death of his wife (3/11/1790) and loss of both his son and daughter to Yellow Fever (11/28/1793 and 12/29/1794 respectively). Indeed, his account of the Yellow Fever epidemic in Philadelphia is particularly exhaustive, with daily records of burials between 9/19-12/31/1793, as well as further accounts during the 1797 crisis, during which he ultimately contracted the disease that led to his death in September 1798.

The journal of Nevins' fellow traveler Joshua Gilpin was published in the Pennsylvania Magazine of History and Biography 46 (1922). That volume provides a complementary perspective on a portion of Nevins' journey.

The Pim Nevins journal chronicles the travels of an English Quaker in the mid-Atlantic and provides an outsider's perspective of American religion, urban space, and economic affairs during the early national period (1802-1803). The Nevins journal features descriptions of various American cities (including New York, Philadelphia, and Washington D.C.) and introspective accounts of Quaker meetings. For those interested in visual culture, Nevins includes a watercolor illustration of the Delaware Water Gap. The Nevins journal may interest researchers investigating natural history, American urban space, and religious practice during the Second Great Awakening, most especially that of the Society of Friends.
 
The journal of Nevins' fellow traveler Joshua Gilpin was published in the Pennsylvania Magazine of History and Biography 46 (1922). That volume provides a complementary perspective on a portion of Nevins' journey.

Contrary to its title, "Sigma Xi lecture tour, 1953" includes entries between 10/14-11/22/1952, shortly after his election to the American Philosophical Society. Contained in a Spiral Stenographer's Notebook (with loose pages until the 11/12 entry), this notebook provides a granular account—often down to the hour—of his travels, meetings, lectures, and seminars with specifics accounts of people, places, and universities. Notably, Stern regularly evaluates audience attendance and engagement, and names individuals with institutional affiliations. Occasionally, he judges institutional priorities. For example, of LSU he writes, "Big campus: Spanish moss and architecture. Money assigned to enlarging stadium instead of library" (10/15/1952). And, while he tends to focus on higher education, occasionally, surrounding communities permeate his observations. For example, in his LSU entry, Stern also records segregation, adding, "road past unpainted negro houses--very small, no basement" (10/15/1952).
 
A second, unbound volume from a decade later provides a detailed account of a two-week trip to the Soviet Union. Maintained between 5/13-6/2/1963, "U.S.S.R Exchange Visit" documents Stern's travels, meetings, seminars, and sightseeing. Although most of the entries are dedicated to his genetics research, Stern also notes visits to various cultural sites and landmarks, including: the Kremlin, in whose mausoleum he writes "Lenin's face yellowish as for wax with light making it glow from inside" (5/16/1963)
 
Sverdlovsk Square, which he describes as "early-19th century Versailles-like park and castle," (5/16/1963), and the Ruski Museum, in which he describes Soviet realism as "wheat factories, sturdy healthy people, statue of men [forging] sword into plough" (5/29/1963). Stern includes at least one brief account of religious practice (or lack thereof) in 1960s Soviet Union, writing: "Morning visit to the churches in the Kremlin…They are all museums but kept in the spirit of religious places. No atheistic propaganda" (5/25/1963).

Curt Stern Papers include two diaries written after his inauguration into the American Philosophical Society and move to UC Berkeley. The first documents a national lecture tour taken in the fall of 1952 and the second, from the spring of 1963, describe an exchange visit to the Soviet Union. Read in tandem, these two volumes may interest researchers investigating Stern's work in genetics and his scholarly networks, segregation and the Jim Crow South, the post-war research university, and the Soviet Union in the Cold War.
 
Contrary to its title, "Sigma Xi lecture tour, 1953" includes entries between 10/14-11/22/1952, shortly after his election to the American Philosophical Society. Contained in a Spiral Stenographer's Notebook (with loose pages until the 11/12 entry), this notebook provides a granular account—often down to the hour—of his travels, meetings, lectures, and seminars with specifics accounts of people, places, and universities. Notably, Stern regularly evaluates audience attendance and engagement, and names individuals with institutional affiliations. Occasionally, he judges institutional priorities. For example, of LSU he writes, "Big campus: Spanish moss and architecture. Money assigned to enlarging stadium instead of library" (10/15/1952). And, while he tends to focus on higher education, occasionally, surrounding communities permeate his observations. For example, in his LSU entry, Stern also records segregation, adding, "road past unpainted negro houses--very small, no basement" (10/15/1952).
 
A second, unbound volume from a decade later provides a detailed account of a two-week trip to the Soviet Union. Maintained between 5/13-6/2/1963, "U.S.S.R Exchange Visit" documents Stern's travels, meetings, seminars, and sightseeing. Although most of the entries are dedicated to his genetics research, Stern also notes visits to various cultural sites and landmarks, including: the Kremlin, in whose mausoleum he writes "Lenin's face yellowish as for wax with light making it glow from inside" (5/16/1963)
 
Sverdlovsk Square, which he describes as "early-19th century Versailles-like park and castle," (5/16/1963), and the Ruski Museum, in which he describes Soviet realism as "wheat factories, sturdy healthy people, statue of men [forging] sword into plough" (5/29/1963). Stern includes at least one brief account of religious practice (or lack thereof) in 1960s Soviet Union, writing: "Morning visit to the churches in the Kremlin…They are all museums but kept in the spirit of religious places. No atheistic propaganda" (5/25/1963).

Henry DeWolf Smyth is perhaps best known for authoring the "Smyth Report," the official government report on the development of the atomic bomb. His diaries offer a glimpse into that report, as well as his career as physicist, diplomat, instructor, policy maker, and administrator. Recorded in 37 notebooks spanning 35 years (1935-1970), the Smyth appointment books reveal his research, extensive professional networks, and wide-ranging travels through the records of meetings, travel arrangements, cocktail parties, and dinners that filled his schedule. While the first couple journals are maintained in small "Lest We Forget" notebooks (1935-1936), the bulk of the collection is available in larger "Frances Juvenile Home Calendar Club" (1936-1958) and "Engagements" books (1959-1970) packed with notes, lists, asides, and occasional newspaper clippings. Notably, he pastes newspaper clippings related to World War II at the front of contemporaneous diaries (1939-1945) and interweaves key news from the war into his own record-keeping, including the attack on Pearl Harbor and U.S. declaration of war (12/7-12/9/1941), the death of President Roosevelt (4/12/1945), and the deployment of both atomic bombs in Hiroshima and Nagasaki (8/6-8/9/1941). Although the notes are spare, nested within them are insinuations of Smyth's ascendant career. For example, one note records his appointment as Commissioner of the U.S. Atomic Energy Commission: "Pres. Truman sees H.— [Henry] offers commission house job. H. home for dinner. We decide yes" (4/18/1949). While it is unclear who authors all of the earlier entries, his wife, Mary C. Smyth, clearly maintains later "Engagements" books (1959-1970). Notably, the "Gray Board" hearings are also detailed in separate page associated with her 1954 diary. Thus, these volumes ought to interest scholars researching Smyth's role in atomic history and international diplomacy as well as those seeking to elevate figures—such as Mary C. Smyth—whose labor might otherwise remain invisible.
 

The Gratz Family Papers include at least two bound volumes and six travel diary fragments of Jewish women in the antebellum period (1807-1846). The first, dated 1807, recounts a trip taken by Rebecca Gratz from Louisville to Nashville in the early national period (6/3-12/8/1807). The second bound volume can be definitively attributed to Sarah G. Moses, although the handwriting in the other fragments bears some resemblance. Recorded between 8/9-11/2/1832, Moses' bound volume recounts Philadelphia local affairs, weather, her recreational activities (e.g. reading, sewing, and embroidery), education, and religious practices (Moses makes numerous mentions of going to "Synagogue"). Notably, she frets the cholera epidemic in an early entry, excerpted in Selected Quotations (8/9/1832). Two diary fragments recount travels from New York City upstate (7/27-8/6/1842) as well as a trip between Savannah and Richmond (commenced 4/30/1846). The remaining fragments were clearly recorded in the antebellum period, but are difficult to date: There's a fragment recounting a trip between Saint Louis and Lexington, another (possibly related) fragment that details a journey from Lexington through the Alleghenies and finally to Baltimore, and two distinct midwestern tours that take the diarist from Lake Michigan to the Mississippi River and from Detroit to Cleveland. Notably, the latter journey must have been recorded sometime between the mid-1830s and mid-1840s, as it references an animated conversation with a Locofoco on a stagecoach (also excerpted in Selected Quotations). These fragments ought to interest scholars researching women's history, Jewish studies, and appalachia and the American South during the antebellum period.
 

As a surgeon, Thomas Hewson Bache provides an on-the-ground view of the Civil War in a diary, maintained throughout 1862 (1/1-11/28), that traverses the American North and South. The first half of the journal documents his life at camps in the South, including Baton Rouge, Cape Hatteras, New Orleans, and Vicksburg, and, starting in late-September, he returns to the northeast, first to New York and then to Philadelphia. In addition to providing a glimpse at soldier camps—especially in Baton Rouge (8/8)—Bache records at least one instance of Yellow Fever. Read together with the Alexander Dallas Bache diary, also from 1862, this volume furnishes researchers with new insights into the Civil War as it was experienced by those on its battlefields.
 

The first three volumes in the Albert C. Peale Papers are the most idiosyncratic. They include a daybook with weather observations (3/10-5/18/1864), a diary associated with a tour of Washington, D.C. during President Andrew Johnson's administration (c.1865-1869), and a lecture notebook pertaining to studies at the University of Pennsylvania. Of those early volumes, A. C. Peale's diary of his tour of Washington D.C. is perhaps most noteworthy. It recounts his travels from Philadelphia through Wilmington and Baltimore, tours of monuments and government buildings, including the U.S. Patent Office, Government Printing Office, and White House, and a handshake with President Johnson during that tour (2/7/1865).
 
The remaining six diaries (1872-1877) are devoted to various western expeditions in what is today Colorado, Wyoming, and Utah. In his first diary (5/15-7/20/1872), A. C. Peale recounts his travel by rail from Philadelphia to Omaha, from which he would conduct his western expeditions. The second volume (5/29-8/15/1873), devotes significant attention to his mineralogical work, including gathering fossils, documenting canyons and volcanic peaks, and ascending various peaks and plateaus. Notably, he references photographer William Henry Jackson, who he writes "disturbed us to take a picture." (8/8/1873). The next two diaries (8/16-10/26/1873 and 5/14/1873-7/18/1874) recount the movement of the party over the next year, most especially campsites, weather problems, and travel constraints. The latter volume also records trip to Savannah (11/20/1873) and includes some accounts in the back of the journal.
 
The final two volumes continue in much the same vein, but offer records of interactions with Bannock and Shosoni Indians. The diary dated 7/19-11/10/1874 documents A. C. Peale's expeditions along branches of the Gunnison River, during which he encounters local tribes on multiple occasions (8/29/1874 and 9/20/1874). The final diary (5/27-10/9/1877), which corresponds with trips into western Wyoming, records numerous interactions with Bannock and Shosoni. For example, A. C. Peale writes that a Shosoni woman shares news of a fight between the whites and the Sioux (6/7/1877), and he commends the English of Bannock outside a ranch near Smith Fork (6/29/1877). Not all interactions are harmonious, however. A. C. Peale also records that Bannock kill two teamsters (8/8/1877) and that one of his his party (Gibbon) loses 300 new guns in a fight (8/23/1877).

Albert C. Peale Papers contain nine volumes that might be classified as diaries. These volumes traverse the American Civil War and Reconstruction period (1864-1877) and provide a window into the exploration and conquest of what is today Colorado, Wyoming, and Utah. The great-grandson of Charles Willson Peale, Albert Charles Peale was a prominent geologist in and author of numerous books in geology, mineralogy, and paleobotany. His journals offer a glimpse into his contributions to the Ferdinand Hayden expeditions, which explored and mapped the western United States. In furnishing numerous accounts of local indigenous peoples, including the Bannock and Shosoni, these volumes may interest scholars researching Native America, western exploration, the fields of geology and mineralogy, and the history of science.
 
The first three volumes in the Albert C. Peale Papers are the most idiosyncratic. They include a daybook with weather observations (3/10-5/18/1864), a diary associated with a tour of Washington, D.C. during President Andrew Johnson's administration (c.1865-1869), and a lecture notebook pertaining to studies at the University of Pennsylvania. Of those early volumes, A. C. Peale's diary of his tour of Washington D.C. is perhaps most noteworthy. It recounts his travels from Philadelphia through Wilmington and Baltimore, tours of monuments and government buildings, including the U.S. Patent Office, Government Printing Office, and White House, and a handshake with President Johnson during that tour (2/7/1865).
 
The remaining six diaries (1872-1877) are devoted to various western expeditions in what is today Colorado, Wyoming, and Utah. In his first diary (5/15-7/20/1872), A. C. Peale recounts his travel by rail from Philadelphia to Omaha, from which he would conduct his western expeditions. The second volume (5/29-8/15/1873), devotes significant attention to his mineralogical work, including gathering fossils, documenting canyons and volcanic peaks, and ascending various peaks and plateaus. Notably, he references photographer William Henry Jackson, who he writes "disturbed us to take a picture." (8/8/1873). The next two diaries (8/16-10/26/1873 and 5/14/1873-7/18/1874) recount the movement of the party over the next year, most especially campsites, weather problems, and travel constraints. The latter volume also records trip to Savannah (11/20/1873) and includes some accounts in the back of the journal.
 
The final two volumes continue in much the same vein, but offer records of interactions with Bannock and Shosoni Indians. The diary dated 7/19-11/10/1874 documents A. C. Peale's expeditions along branches of the Gunnison River, during which he encounters local tribes on multiple occasions (8/29/1874 and 9/20/1874). The final diary (5/27-10/9/1877), which corresponds with trips into western Wyoming, records numerous interactions with Bannock and Shosoni. For example, A. C. Peale writes that a Shosoni woman shares news of a fight between the whites and the Sioux (6/7/1877), and he commends the English of Bannock outside a ranch near Smith Fork (6/29/1877). Not all interactions are harmonious, however. A. C. Peale also records that Bannock kill two teamsters (8/8/1877) and that one of his his party (Gibbon) loses 300 new guns in a fight (8/23/1877).

Interested researchers would do well to consult the detailed description of Hunter's four volumes available in the Early American History Note. For the purposes of diary researchers, the first volume (1796) warrants attention for its descriptions of indigenous peoples and early settlements. For example, Hunter offers an extended account of St. Louis (9/4/1796). He also describes an Indian woman whose nose was cut off by her husband for infidelity, a passage excerpted in Selected Quotations (9/9/1796). The 1802 journal documents Hunter's trip across Pennsylvania (Berlin, Carlisle, and Shippensburg), visit to a cave in Kentucky, and discussion of salt production at Blue Lick. Finally, the last two journals (1804, 1809) include various travels in the South, including a description of expedition to the Hot Springs of Arkansas (1804-1805) as well as longitudes and latitudes that researchers might use to trace Hunter's journey. Notably, Hunter discovers Mammoth bones, which he compares to those of Charles Wilson Peale, writing, "I cannot for bear mentioning a great natural curiosity I have just seen here [sic] about 2 ½ Tons of Bones of one or two Mammoths twice as large as Peals" (5/27/1804).

George Hunter maintained four journals during expeditions into Kentucky, Illinois, Mississippi, and Louisiana between 1796-1809. Hunter records his daily affairs, observations of territories, visits to trading centers, and commentary on international rivalries and relations with various indigenous peoples, including the Delaware, Cherokee, Chickasaw, Choctaw, and Osage. With rich, narrative accounts of western travel in the early national period—including exploration of Louisiana shortly after the Louisiana Purchase—the Hunter diaries ought to interest scholars researching the American west, Native America, and U.S. empire.
 
Interested researchers would do well to consult the detailed description of Hunter's four volumes available in the Early American History Note. For the purposes of diary researchers, the first volume (1796) warrants attention for its descriptions of indigenous peoples and early settlements. For example, Hunter offers an extended account of St. Louis (9/4/1796). He also describes an Indian woman whose nose was cut off by her husband for infidelity, a passage excerpted in Selected Quotations (9/9/1796). The 1802 journal documents Hunter's trip across Pennsylvania (Berlin, Carlisle, and Shippensburg), visit to a cave in Kentucky, and discussion of salt production at Blue Lick. Finally, the last two journals (1804, 1809) include various travels in the South, including a description of expedition to the Hot Springs of Arkansas (1804-1805) as well as longitudes and latitudes that researchers might use to trace Hunter's journey. Notably, Hunter discovers Mammoth bones, which he compares to those of Charles Wilson Peale, writing, "I cannot for bear mentioning a great natural curiosity I have just seen here [sic] about 2 ½ Tons of Bones of one or two Mammoths twice as large as Peals" (5/27/1804).

John Lyon's botany journal offers a record of travels in the eastern U.S. at the turn of nineteenth century. The volume includes memoranda dated 1799, with entries spanning 9/6/1802-8/6/1814. Lyon's entries document expenses—plants purchased and collected—with occasional notes about the places and peoples he encounters. Entries related to his travels in the eastern and southeastern U.S. record a visit to plantations (4/23/1803), an Indian settlement in Georgia (7/19/1803), and medical treatments for palsy, jaundice, and cancer (12/1/1808). Notably, Lyon discusses an albino slave in Athens, Georgia, as excerpted in Selected Quotations (9/25/1804). In the spring of 1806, he records travel to Dublin, Liverpool, and London. Thus, while the Lyon journal will certainly appeal to researchers exploring nineteenth century botany, they also feature content with wider appeal, such as U.S. slavery, transatlantic travel, indigenous trade, and antebellum medicine.
 

Luna Bergere Leopold Papers contain a truly remarkable set of field notes and journals traversing some 75 years (1931-2006). The son of the famous conservationist Aldo Leopold, Luna Loeopold enjoyed a long and multidisciplinary career in his own right, contributing to the fields of meteorology, hydrology, geomorphology, and conservation more broadly. The APS holds two sets of materials that provide rich, nearly daily insights into his long career: Leopold's field notebooks and personal journals. Maintained in 71 numbered volumes—101 volumes total—the field notebooks begin in 1937 and end in 2006, just a day before his death. Given the volume of material, researchers would be well-advised to us the two indices, hand-bound by Leopold, to navigate these volumes. (Thankfully, the APS finding aid is also unusually granular.) In addition to detailed field measurements, readings, and professional travels, Leopold often uses these notebooks to record personal reflections. Arguably the jewel of the collection, however, is a set of 12 large, meticulously illustrated personal journals that collect decades (1931-2003) of personal stories, work perspectives, and travelogues. These journals are so packed with photographs, illustrations (many of them quite remarkable in their draftsmanship), and other ephemera that they might be better described as ornate scrapbooks, and some items have been relocated into separate folders. Scholars new to the collection may choose to begin research with the field notebooks and personal journals by tracing Leopold's wide-ranging twentieth-century travels. In addition to decades of intensive field work in the American west, Leopold spent extensive time in Hawaii prior to statehood (1947-48), visited India shortly after Independence (1955), and conducted a 1970 worldwide trip that carried him to Kenya, Nepal, Japan, and Israel (to which he would return in 1974 and 1983).
 

This collection contains at least 18 diaries spanning more than thirty-five years (1917-1954) of unusual diaries available as both loose pages (contained in 5 folders) and traditional notebooks (11 bound volumes). Maintained by crystallographer Rose Mooney-Slater, these records offer insights into her graduate education at Tulane University and the University of Chicago, Guggenheim Fellowship in Europe on the eve of World War II, and noteworthy career during the postwar period. Alongside many rich ancillary materials--such as a Friendship Book with numerous photographs from 1914-17--Mooney-Slater's diaries provide detailed information about her personal and professional life. Of particular note is a diary describing her aborted Guggenheim Fellowship in Holland at the outset of World War II, as excerpted in Selected Quotations (9/1/1939). With the outbreak of war, Mooney-Slater cuts short her fellowship and books passage back to the United States as others rush to leave Europe. Early diaries provide glimpses into her struggles to balance marriage with graduate education (1928-29) and later diaries document her wide-ranging professional travels during the postwar period, including trips to Europe in both 1951 and 1954. Unfortunately, many of these volumes are water-damaged, and it can be challenging to trace the chronology of materials in folders (particular items in the 1917-1952 folder). However, scholars willing to take the time to peruse these records will be richly rewarded with insights into twentieth-century science, the postwar research university, and the inner life of a remarkable female scientist.
 

The Cassin diaries are contained in six volumes. The first, spanning 1865-66, documents his travel by steamer. Cassin records crossing the equator (7/30/1865), visiting a volcano at Cape Verde (7/25/1865), and arriving in Brazil. Enterprising researchers might research his course using the longitudes and latitudes he records throughout this volume.
 
The second volume picks up more than a year later and commits significant attention to the medical profession. The first entry voices concern about the medical department at the University of Pennsylvania (12/10/1868), and subsequent pages enclose copies of letters from 1869, including his committee appointments, especially Assistant Surgeon in the Navy (4/2/1869). Sequential entries begin in earnest on 5/6/1869, when Cassin recounts his travels aboard the brig Ohieflaua from the Chicago Harbor to Lake St. Clair.
 
Cassin's third and fourth volumes are less descriptive but remarkable for the extent of his travels. In his 1870 "New York" diary, Cassin notes another journey to Brazil in June, South China Sea in August, and Hong Kong and Shanghai in September. His 1870-71 diary dovetails with the latter, recording a trip to Rio de Janeiro (6/6/1870) and undated notes pertaining to a voyage to South Africa. Once again, Cassin captures many longitudes and latitudes.
 
The "Clayton's Octovo Diary 1872" is perhaps the richest from an ethnographic perspective. Cassin provides detailed accounts of visits to Key West (2/10/1872), Havana and Matanzas (between February and April 1872), and even a brief reflection on the act of journaling. "A diary is something like a resolve to call professionally on a dentist
 
you may keep it, but the chances are much in the favor of your putting it off," Cassin observes on 4/26/7182. "Diary writing is almost the stupidest thing that I know of, unless one can make a writing task in no other way." Between May and June 1872, he travels throughout the Caribbean, furnishing descriptions of the peoples and villages he encounters. Interested researchers will find a particularly evocative entry of Key West society women in a 6/21/1872 quotation below.
 
A Pocket Diary dated 1875, finds Cassin landlocked, maintaining a more traditional journal of meetings, calls, letters, and weather conditions. The volume opens in St. Louis where he has apparently purchased a home, and it is not until September that he begins to travel again. That fall he returns to Brazil (11/6) and visits Uruguay (12/1).

Serving as a U.S. Navy physician, Charles Luke Cassin traveled extensively, recording firsthand accounts of Brazil, Canada, South Africa, the South China Sea, and the Caribbean during the postbellum period. His six-volume journal, which spans 1865-1875, offers glimpses at those far flung locations and the various peoples who inhabited them. Cassin's journals ought to appeal to a wide range of researchers, including those interested in the history of seafaring, the West Indies, ethnography, and late-eighteenth-century medical practices.
 
The Cassin diaries are contained in six volumes. The first, spanning 1865-66, documents his travel by steamer. Cassin records crossing the equator (7/30/1865), visiting a volcano at Cape Verde (7/25/1865), and arriving in Brazil. Enterprising researchers might research his course using the longitudes and latitudes he records throughout this volume.
 
The second volume picks up more than a year later and commits significant attention to the medical profession. The first entry voices concern about the medical department at the University of Pennsylvania (12/10/1868), and subsequent pages enclose copies of letters from 1869, including his committee appointments, especially Assistant Surgeon in the Navy (4/2/1869). Sequential entries begin in earnest on 5/6/1869, when Cassin recounts his travels aboard the brig Ohieflaua from the Chicago Harbor to Lake St. Clair.
 
Cassin's third and fourth volumes are less descriptive but remarkable for the extent of his travels. In his 1870 "New York" diary, Cassin notes another journey to Brazil in June, South China Sea in August, and Hong Kong and Shanghai in September. His 1870-71 diary dovetails with the latter, recording a trip to Rio de Janeiro (6/6/1870) and undated notes pertaining to a voyage to South Africa. Once again, Cassin captures many longitudes and latitudes.
 
The "Clayton's Octovo Diary 1872" is perhaps the richest from an ethnographic perspective. Cassin provides detailed accounts of visits to Key West (2/10/1872), Havana and Matanzas (between February and April 1872), and even a brief reflection on the act of journaling. "A diary is something like a resolve to call professionally on a dentist
 
you may keep it, but the chances are much in the favor of your putting it off," Cassin observes on 4/26/7182. "Diary writing is almost the stupidest thing that I know of, unless one can make a writing task in no other way." Between May and June 1872, he travels throughout the Caribbean, furnishing descriptions of the peoples and villages he encounters. Interested researchers will find a particularly evocative entry of Key West society women in a 6/21/1872 quotation below.
 
A Pocket Diary dated 1875, finds Cassin landlocked, maintaining a more traditional journal of meetings, calls, letters, and weather conditions. The volume opens in St. Louis where he has apparently purchased a home, and it is not until September that he begins to travel again. That fall he returns to Brazil (11/6) and visits Uruguay (12/1).

The Elisha Kent Kane Papers and Logbooks include at least 50 heterogeneous notebooks, journals, and logs that may be loosely termed diaries and clustered into four main categories: Kane's arctic expeditions (containing six notebooks); his world travel (eight notebooks); his education, training, and medical practice (24 notebooks); and the various ship logs contained in the Kane Ship Log collection (12 notebooks). Although some of these records are difficult to interpret in isolation, when read together in these suggestive clusters, they will richly reward scholars interested in trans-Atlantic and trans-Pacific travel, antebellum medicine, colonialism, and ethnography. Reference F. A. Parker's "Log of the U.S. Frigate Brandywine" (Kane Logbooks, No.7) and Samuel L. Breeze's "Journal of the U.S. Sloop of War Albany" (Kane Logbooks, No.8) for detailed illustrations of antebellum Rio de Janeiro, Macao, Hong Kong, Honolulu, Valparaiso, Veracruz, and the Yucatan.
 

The John Pershouse papers contain two volumes of genealogical data from the late-eighteenth century, two letter books thought to belong to his nephew (Henry Pershouse), and one travel journal. The journal is noteworthy because it furnishes accounts of transatlantic travel in the early national period. While the first entry notes Pershouse's departure from Liverpool to Boston on a 56-day voyage (2/1/1800), regular entries begin around 1826 and continue to late-1838. As a Philadelphia merchant, Pershouse regularly records distances, accounts, and sights in Europe and the United States. Notably, he travels on a ship under the command of a Captain Matlack (presumably Timothy Matlack), travels extensively in the U.S. Southeast and Midwest, and notes the outbreak of the Belgian Revolution in 1830—all excerpted in Selected Quotations. Researchers interested in U.S. domestic and transatlantic travel during the antebellum period ought to find this volume particularly useful.
 

The journal was printed in APS Proceedings 26 (1889):1. The Kentucky travels can be found in Reuben G. Thwaites' Early Western Travels, 1748-1846.

Michaux maintained travel journals during his excursions throughout North America between 1787-1796. These 10 volumes furnish accounts of Charleston (September 1787), Saint Augustine and the Bahamas (1787-88), the Savannah River (December 1788), and Kentucky shortly after statehood (1794-95). Notably, Michaux records at least one visit to David Rittenhouse and Thomas Jefferson (12/14/1793), and he makes a proposal to the American Philosophical Society to explore unknown regions beyond Missouri and Kentucky, which Jefferson, then Secretary of State, accepts (12/10/1792). French-reading researchers—the volumes are maintained entirely in French—ought to find that these volumes offer insights into Southern and Western exploration during the early national period.
 
The journal was printed in APS Proceedings 26 (1889):1. The Kentucky travels can be found in Reuben G. Thwaites' Early Western Travels, 1748-1846.

In his detailed journal of a trip to America in the late-nineteenth century (1880), English Quaker Richard Beck offers comments on Philadelphia society and its institutions, as well as a record of his travels around America, particularly by rail. Along the way, he crosses paths with naturalist Titian Peale and artist Henry Ulke. This volume is noteworthy in two regards. First, it contains a wealth of memorabilia, including advertisements, photographs, playbills, menus, as well as Beck's own original pencil and watercolor sketches. Second, it features thoughtful and often comparative assessments of the people and places he visits. In fact, no detail can escape Beck's attentive eye. Alongside descriptions of Colorado rock formations (4/30/1880), Yosemite redwoods (6/2/1880) and the development of Salt Lake City (5/15/1880), Beck intersperses comments on American hairstyles (2/27/1880), eyeglasses (3/2/1880), libraries (4/20/1880), and that great American pastime, baseball (7/8/1880). This volume may interest scholars of postbellum material culture, late-nineteenth century Philadelphia, and the American West.
 

The Heiser diaries are without peer when it comes to their scope--spanning the first seven decades of the twentieth-century--global reach, and detail. Scholars exploring the history of medicine might gravitate towards entries related to his public health work in the Philippines (1908-1916). Researchers interested in the history of zionism will be richly rewarded by volumes from 1922 and 1926--an excerpt from Heiser's July 1922 journey to Palestine is excerpted in Selected Quotations. And those interested in colonial India will discover a numerous reflections on Gandhi and 1920s non-violent resistance movements (also excerpted in Selected Quotations).
 
Perhaps most surprising are Heiser's detailed accounts of European travel between the 1920s and 1930s, during which he expresses some sympathy for nationalist movements. Traveling war-torn Italy, he remarked on there "appears to be unanimous agreement among natives and foreigners" that the new prime minister, Benito Mussolini, "has accomplished extraordinary results and that he is honest and genuinely patriotic" (11/19/1923). Several years later, he documents the nation's progress in developing infrastructure and improving services. He concludes his 4/29/1926 entry with an ominous justification for fascism: "Democracy gradually became so inefficient that all came to a standstill and a dictator was able to start the machinery on an effective basis."
 
Heiser traveled widely during the decade preceding World War II. In the late-1930s, he returned to Italy and decries the ubiquitous military presence, government propaganda, and oppressive taxation. And yet, he ends his entry with a section entitled "The Other Side." Heiser writes: "A whole new social order has been created. Instead of people finding fault with what government fails in, the press and government propaganda constantly drive into their ears what government is doing for the people. (In the end will this not produce more peace of mind and happiness than our democratic way of emphasizing fault-finding)" (4/25/1937).
 
On the topic of promoting public happiness, Heiser draws a similar conclusion during a contemporaneous visit to Germany. While he decries the Nazi government's "censorship, prohibitions and [intrusion into] one's private affairs," he adds: "And yet one begins to wonder whether there is not much to be said in favor of the good type of dictatorships, in promoting human happiness. In democracies people are [annoyed] to say or think little of the good things government does for them and to place main emphasis upon petty fault finding" (6/3/1937). Finally, just one year prior to the outbreak of World War II, Heiser pens perhaps his most generous account of dictatorships. That account, "Further Impressions Dictatorships," is excerpted in Selected Quotations.

By any measure, public health leader Victor George Heiser lived a long, productive, and vigorous life. His 86 diaries (1890-1972) predate the Spanish-American War and post-date U.S. escalation in Vietnam, while his career in public health put him in contact with politicians, diplomats, ambassadors, and government officials across the globe. An astute political observer, Heiser offers rich, on-the-ground insights into twentieth-century history as it unfolded, from the rise of Gandhi to the fall of Hitler. His 1920s and 1930s entries also offer candid explanations of and justifications for dictatorship. The Heiser diaries may interest a wide range of scholars, including those researching the history of science, American public health policy in the Philippines, the history of Zionism and Israeli statehood, colonialism in Asia (most especially India), and Europe between World War I and World War II.
 
The Heiser diaries are without peer when it comes to their scope--spanning the first seven decades of the twentieth-century--global reach, and detail. Scholars exploring the history of medicine might gravitate towards entries related to his public health work in the Philippines (1908-1916). Researchers interested in the history of zionism will be richly rewarded by volumes from 1922 and 1926--an excerpt from Heiser's July 1922 journey to Palestine is excerpted in Selected Quotations. And those interested in colonial India will discover a numerous reflections on Gandhi and 1920s non-violent resistance movements (also excerpted in Selected Quotations).
 
Perhaps most surprising are Heiser's detailed accounts of European travel between the 1920s and 1930s, during which he expresses some sympathy for nationalist movements. Traveling war-torn Italy, he remarked on there "appears to be unanimous agreement among natives and foreigners" that the new prime minister, Benito Mussolini, "has accomplished extraordinary results and that he is honest and genuinely patriotic" (11/19/1923). Several years later, he documents the nation's progress in developing infrastructure and improving services. He concludes his 4/29/1926 entry with an ominous justification for fascism: "Democracy gradually became so inefficient that all came to a standstill and a dictator was able to start the machinery on an effective basis."
 
Heiser traveled widely during the decade preceding World War II. In the late-1930s, he returned to Italy and decries the ubiquitous military presence, government propaganda, and oppressive taxation. And yet, he ends his entry with a section entitled "The Other Side." Heiser writes: "A whole new social order has been created. Instead of people finding fault with what government fails in, the press and government propaganda constantly drive into their ears what government is doing for the people. (In the end will this not produce more peace of mind and happiness than our democratic way of emphasizing fault-finding)" (4/25/1937).
 
On the topic of promoting public happiness, Heiser draws a similar conclusion during a contemporaneous visit to Germany. While he decries the Nazi government's "censorship, prohibitions and [intrusion into] one's private affairs," he adds: "And yet one begins to wonder whether there is not much to be said in favor of the good type of dictatorships, in promoting human happiness. In democracies people are [annoyed] to say or think little of the good things government does for them and to place main emphasis upon petty fault finding" (6/3/1937). Finally, just one year prior to the outbreak of World War II, Heiser pens perhaps his most generous account of dictatorships. That account, "Further Impressions Dictatorships," is excerpted in Selected Quotations.