This diary records the travels of Loammi Baldwin in the Netherlands (then including Belgium), England, and France, with detailed observations and careful pen-and-ink sketches of canals and canal machinery.

These two diaries were kept by Amelia Smith Calvert on trips to Europe with her husband Philip Powell Calvert. They record little scientific information, although there is mention of some of the entomologists and scientists whom they met (e.g. Professor Robert Newstead of University of Liverpool). In general, her observations are those of a literate and passionate sightseer who records travel events in great detail. The British diary (1912) includes descriptions of Liverpool, Edinburgh, York, Lincoln, Cambridge, Oxford, and London, and observations of the entomological specimens they saw in London. The Europe diary (1929) includes descriptions of Antwerp, Brussels, Amsterdam, Lucerne, Venice (of particular interest), Padua, and Milan. There is a description of P.P. Calvert's examination of insect specimens in the collection of Baron de Sélys-Longchamps in the Institut royal des sciences naturelles de Belgique.

The correspondence (1869-1883) is primarily routine business, i.e. navy orders and letters of recommendation, and also includes some personal letters. In addition, there are several notebooks and diaries, including notes from Pennsylvania Hospital clinical lectures, 1867-1869 (2 v.); diaries, 1865-1875 (7 v.); a volume of poetry; and general study notes. There is also early material (1745-1813) on the Cassin family, including a letter of indenture dated 1758.

Place names (taken from deeds of conveyance and maps, and narrated by Indians) for Pennsylvania, New Jersey, Maryland, and Virginia, together with names and biographies of chiefs and famous men. Translations included.

Letters relating to American Indian languages, Moravian missionaries, various Heckewelder publications. Some of the replies from Du Ponceau are copied in the letter books of the Historical and Literary Committee.

The first three volumes contain journals of Strahan's travels in Scotland, with records of expenses along the way, for 1751, 1759, 1760, 1766, 1768, 1773, and 1777. Strahan and Benjamin Franklin were in Edinburgh at the same time in 1759. The fourth volume contains "The particulars of the estate of Wm Strahan as it stood on the first of January 1755," and also for 1759 and 1761, with some miscellaneous accounts.

Includes correspondence, diaries, lab notes, photographs. Webster was a pioneering epidemiologist working at the Rockefeller Institute (1920-1943), and his collection documents this, as well as his interest in encephalitis, poliomyelitis, rabies, and resistance to infectious diseases. Other aspects of his life can be seen in his diaries and journals: diary of 1909; privately published diary of 1919, with photos, of his service in Labrador as a physician at the International Grenfell Assoc.; European journal of 1924, with photos, of Webster's honeymoon trip which was partly paid for by the Institute in order that he could meet European scientists; diary of 1929-1943; 1930 journal of a canoe trip to James Bay, with Dr. Charles C. McCoy. There is also a volume of letters concerning his death, including biographical sketches by colleagues. The contributions of his wife, Emily deForest Webster White (later married to Dr. Harold White), to Webster's work and publications can be seen in her interesting reminiscence, "Science Recollections, 1923-1971." Her own interests after Webster's death are suggested in her report of her world trip of 1964 in behalf of the Planned Parenthood Assoc. including attendance at the International Conference of Social Work, in Athens, Greece.

This collection contains diaries, weather records, and commonplace books of Thomas Thistlewood for the years 1748-1786. His diaries (37 volumes) cover two years in England (in London and in Lincolnshire) and the remaining time in Jamaica (1750-1786). This is a rich source for agricultural, daily routines, slave life, folklore, natural history, medical diagnosis and remedies, the intellectural world of an Anglo-Jamaican, his sex life, and the climatic history of Jamaica. There are also miscellaneous volumes, such as a list of slaves, 1758-1766. Included in the collection is the journal of his nephew, John Thistlewood, 1763-1765, describing his voyage to Jamaica and life on his uncle's plantation.

These papers include diaries (1777-1782), expense books (1794-1804), notebooks, a commonplace book, drafts of essays, excerpts from minutes of Friends' Monthly Meeting, Tortola (1741-1761), newspaper clippings, sketches, and correspondence. Also included are letters and papers of Mrs. Thornton.

Journal written between July 1, 1765 and April 10, 1766 on a trip through North Carolina, South Carolina, Georgia, and Florida, with observations about flora, fauna, geography, and social life.

Beginning with his college life as an undergraduate at Harvard (1905-1906), Morley's diaries continue through his earliest travels and explorations of Central America (1907-1944), with information on the study of Mayan hieroglyphs, publications, the study of Central American ruins, and the manners and customs of the jungle Indians. Five volumes are devoted to four separate archaeological expeditions: Copan expedition (1937), Uxmal expedition (1941-1942), Central American expedition (1944), and Guatemala and Honduras expedition (1947). Formal and detailed field notes form the bulk of Morley's archaeological work. There are no diaries for 1908-1911, 1913, 1926-1930, 1933-1936, 1938-1940, and 1943.

This collection includes correspondence (4 linear feet), diaries, manuscripts of publications, and research data (6 linear feet.). Mooney-Slater (1902- 1981) was born Rose Camille LeDieu and grew up in New Orleans, Louisiana. She received her BS at Newcomb College, MS at Tulane University and PhD from the University of Chicago (1932) where she worked under Will Zachariasen. Recognized as an outstanding crystallographer, she was the recipient of a Guggenheim Fellowship, appointed chair of the physics department at Tulane University, worked at the Metallurgical Laboratory under the auspices of the Manhattan District at the University of Chicago, and on the structure of crystals and crystalline materials using X-ray diffraction.

A collection of letters (family and professional), notebooks, diaries, lectures, articles, and photographs, of Smith, a noted American geographer who influenced the teaching of geography after 1920 through his many elementary texts. There is much material relating to these writings. His contributions to the rise of human geography and the related areas of conservation and ecology, are documented. His study in Europe under Friedrich Ratzel, at Leipzig in 1901-1912, is touched on in his journal for those years; included are many interesting observations on German university life. There is also much material on his nursery business in Virginia. Organizational files are numerous, e.g. Association of American Geographers, Columbia University, U. S. Department of Agriculture. Much of the correspondence is limited to only a few letters from each correspondent. Among the names included are: Willard G. Bixby, Isaiah Bowman, John W. Hershey, Emory R. Johnson, Walter C. Lowdermilk (of particular note is his 1926 paper, written while at the University of Nanking, "Forest Conservation in Shansi, China"), and Lewis Mumford.

The plant physiologist and historian Rodney H. True (1866-1940) divided his career relatively evenly between the Bureau of Plant Industry in United States Department of Agriculture and the Department of Botany and Morris Arboretum of the University of Pennsylvania. A specialist in the physiological function of mineral nutrients in plants, True was active in his later career in the Philadelphia Society for Promoting Agriculture, the Pennsylvania Horticulture Society, and the Agricultural History Society. The True Papers consist of 6 linear feet of material relating primarily to the period of his career spent at the University of Pennsylvania. The collection contains roughly equal proportions of personal and professional correspondence, with a few diaries and research notebooks documenting his involvement with professional organizations and his interests in the history of his discipline.

The collection of about 850 items covers the period from 1782 to c. 1936, with the bulk dating to the 1780s to 1840s. The collection is divided into four series. Series I contains correspondence relating to a wide variety of topics, including French and English politics, business, trade, religious matters, and personal affairs. Many of the items are letters of introduction. There is also information on John Vaughan's immigration to America, Joseph Priestley, vaccines and inoculation (with Jefferson's comments on the same), Vaughan's business in Philadelphia, and the American Philosophical Society. Also included in this series are 2 boxes with copies of Vaughan correspondence as well as miscellaneous notes by E. W. Madeira, gathered in the course of his research on Vaughan in the 1930s. Series II consists of three volumes. Included are two of Vaughan's commonplace books. One, entitled, "J. Vaughan's book," May 17, 1779 (47 pp., in Latin; 870/L34), includes mostly Latin notations. The other commonplace book, dated 1783 (ca. 66 pp.; B V 462.c), includes comments on several prominent Americans, such as Benjamin Rush and David Rittenhouse, as well as American society generally. The third volume is a copybook with thirty letters spanning the period 1784 to 1801 (B V462.1). Series III includes material relating to Vaughan's administration of the estate of the Philadelphia merchant Samuel Merrick, 1796-1822 (Vaughan-Merrick Papers, B V462.m; 2 boxes). Series IV consists of correspondence between Vaughan and the DuPont Co. for which he served as agent (B V462.4; photocopies of 73 letters).

A wealthy retired businessman and art collector from New York and Newport, R.I., Theodore M. Davis financed a series of archeological excavations in Egypt between 1889 and 1912. Avid, but not necessarily disciplined in his approach, he supported a remarkably productive series of excavations at Thebes and, in the work for which he is best remembered, in the Valley of the Kings. On many of these expeditions, Davis was accompanied by his relative, Emma B. Andrews. The diary that Andrews kept during these expeditions is valuable on two scores. First, at its best, it provides a literate and often detailed record of an adventurous American woman traveling in fin de siecle Egypt and (to a lesser degree) Italy and her encounters with life in the colonial British settlements along the Nile. Second, it provides some important details on the appearance of tombs in the Valley of the Kings as they were first unearthed, with interesting comments upon Davis and a number of his fellow Egyptologists.

The collection consists of diaries, 1890-1938, containing brief records of professional work and family events (49 vols.); also autobiography entitled "Memories for my boys," 1930 (B D713m), referring to his childhood and to his professional career and mentioning Franz Boas, William Comstock, Livingston Farrand, William W. Keen, S. Weir Mitchell, Elihu Root, and W. T. Sedgewick and also APS, University of Chicago, Johns Hopkins University, Yale University, and Wistar Institute (1 vol.); also a few miscellaneous papers, 1869-1932, chiefly letters to and from members of his family, and also Poultney Bigelow, Simon Henry Gage, and W. B. Van Ingen; two essays ("The Days of Man" and "A Venetian Night"): genealogical data; verses dedicated to his wife; extracts of letters to supplement his diaries.

This journal was kept while Shippen was a student of medicine in London under Dr. Colin McKenzie and Dr. William Hunter. Notable people mentioned are Dennys De Berdt, Mark Akenside, George Whitefield, John Fothergill, David Garrick, and Thomas Penn.

Papers of jurist Samuel Bayard (1767-1840), including a diary from his time in London as American Claims Agent; correspondence with William Bradford (1755-1795), second attorney general of the United States; and a 1778 letter from William Alexander, Lord Stirling, to Governor William Livingston of New Jersey that discusses troop deployment in that state.