David Rittenhouse maintained meteorological observations in two volumes that span the first twenty years of the early national period (5/6/1784-9/30/1805). Alongside weather conditions, Rittenhouse regularly documents temperatures, the conditions of roads, expenses, and accounts. These volumes may interest researchers studying meteorological conditions as well as other regional phenomena such as eclipses and the Yellow Fever epidemic.

Meteorological observations, 1784-1805
 
David Rittenhouse maintained meteorological observations in two volumes that span the first twenty years of the early national period (5/6/1784-9/30/1805). Alongside weather conditions, Rittenhouse regularly documents temperatures, the conditions of roads, expenses, and accounts. These volumes may interest researchers studying meteorological conditions as well as other regional phenomena such as eclipses and the Yellow Fever epidemic.

Researchers will likely gravitate to Strahan's first volume, a detailed, six-week account of European travels taken in 1751 (7/6-8/28). Alongside accounts of weather, road and travel conditions, and various social gatherings (e.g. breakfasts, dinners, teas), Strahan's entries offer glimpses into eighteenth-century English conduct, church services, universities, courts, libraries, as well as villages, towns, and cities and their inhabitants. For example, Straham describes Newcastle as a "a place of Business and Industry equal to London" (7/15) and Paisley as a "perfect hive of industrious people" (8/6). Attending a trial, he remarks upon the conduct of the participants, writing, "The court was very solemn and the lawyers were both elegant and behaved with remarkable decency" (7/22). Strahan even visits a poorhouse in Edinburgh, by which, he remarks, "the City is not only freed of all beggars, but the offspring of such are [tirelessly] snatched from Destruction, so that the Race of disorderly people are hereby extinguished" (7/30).
 
The second (1759, 1760, 1766), third (1768, 1773, 1777), and fourth volumes (1755-1761) are much less detailed but sketch his travel (and distances covered). The fourth volume, in particular, more closely resembles an account book than a journal. As he takes stock of his properties, assets, and debts, Straham records his increasingly wealth—from £ 5,000 in total assets in 1755 to £ 12,000 in 1761.

The William Strahan diary encompasses four volumes spanning 1751-1777. The first volume features the most detailed entries, whereas the second and third volumes include shorter accounts of multiple excursions and the fourth volume serves less as a journal than a summation of accounts, debts, and holdings. The first volume's accounts of mid-eighteenth-century England ought to interest researchers interested in English urban space, governance, and social conduct.
 
Researchers will likely gravitate to Strahan's first volume, a detailed, six-week account of European travels taken in 1751 (7/6-8/28). Alongside accounts of weather, road and travel conditions, and various social gatherings (e.g. breakfasts, dinners, teas), Strahan's entries offer glimpses into eighteenth-century English conduct, church services, universities, courts, libraries, as well as villages, towns, and cities and their inhabitants. For example, Straham describes Newcastle as a "a place of Business and Industry equal to London" (7/15) and Paisley as a "perfect hive of industrious people" (8/6). Attending a trial, he remarks upon the conduct of the participants, writing, "The court was very solemn and the lawyers were both elegant and behaved with remarkable decency" (7/22). Strahan even visits a poorhouse in Edinburgh, by which, he remarks, "the City is not only freed of all beggars, but the offspring of such are [tirelessly] snatched from Destruction, so that the Race of disorderly people are hereby extinguished" (7/30).
 
The second (1759, 1760, 1766), third (1768, 1773, 1777), and fourth volumes (1755-1761) are much less detailed but sketch his travel (and distances covered). The fourth volume, in particular, more closely resembles an account book than a journal. As he takes stock of his properties, assets, and debts, Straham records his increasingly wealth—from £ 5,000 in total assets in 1755 to £ 12,000 in 1761.

In contrast to many other scientists, Donaldson captures many world events in his journal. Entries include an on-the-ground account of the 1893 World's Fair (5/13-5/27/1893) and news pertaining to the Great Baltimore Fire (2/7/1904), Russo-Japanese War (2/8/1904), and World War I. Donaldson studiously records the spread of war in Europe (7/31/1914), the increasing likelihood of U.S. involvement (2/4/1917), and false reports of peace. Several days before the Armistice, he writes, "Peace was reported here about 1 pm. The town went wild & remained wild most of the night. Report was a hoax" (11/7/1918). Donaldson also proves an active observer of and participant in U.S. politics. For example, in addition to recording the election of President Wilson (11/5/1912) and death of President Harding (8/2/1923), he writes that he travels to Harrisburg to lobby against an "anti-vivisection bill" (4/25/1907) and attends a "League of Nations dinner" (1/15/1932).
 
Perhaps most surprising is how personal affairs infiltrate the Donaldson diaries. Sometimes such asides are amusing
 
for example, in one entry he writes that he was "attacked by goose without cause" (3/31/1917). Elsewhere, they're more serious and evocative. Shortly after Donaldson writes that his first wife, Julia, is "diagnosed melancholia" and put on an "opium treatment" (9/13/1904), he records her suicide: "our dear Julia was found dead by her own hand at 7 o'clock this morning. She was still warm when found. It is desolation—the saddest of days" (11/10/1904). Several years later, he notes his engagement to Emma Brock (3/1/1907) and, still later, the birth of a son Harry, (3/16/1920). In the 1930s, his health appears to deteriorate: Donaldson begins tracking weight fluctuations on 7/13/1931 and undergoes a metabolism test on 10/17/1934. His last entry, written in third-person in a different hand, appears to have been maintained by someone else, possibly Emma. The diary concludes, "The end at 2 a.m." (1/23/1938).

Contained in 49 volumes, the Herbert Donaldson diaries traverse 1890-1938 and provide glimpses of his neurological work at the University of Chicago and the Wistar Institute in Philadelphia, meetings with leading scientists--including Boas and Davenport--European and American travels, recreational activities, personal affairs, and leadership at the National Academy of the Sciences, the American Neurological Association, the Physiological Society, the Lenape Club, the Rush Society, as well as the American Philosophical Society, where he was elected a member in 1906 and vice president in 1935. The Donaldson diaries may interest researchers exploring the history of mental health, American Philosophical Society membership, twentieth-century U.S. politics, the 1893 World's Fair, and World War I.
 
In contrast to many other scientists, Donaldson captures many world events in his journal. Entries include an on-the-ground account of the 1893 World's Fair (5/13-5/27/1893) and news pertaining to the Great Baltimore Fire (2/7/1904), Russo-Japanese War (2/8/1904), and World War I. Donaldson studiously records the spread of war in Europe (7/31/1914), the increasing likelihood of U.S. involvement (2/4/1917), and false reports of peace. Several days before the Armistice, he writes, "Peace was reported here about 1 pm. The town went wild & remained wild most of the night. Report was a hoax" (11/7/1918). Donaldson also proves an active observer of and participant in U.S. politics. For example, in addition to recording the election of President Wilson (11/5/1912) and death of President Harding (8/2/1923), he writes that he travels to Harrisburg to lobby against an "anti-vivisection bill" (4/25/1907) and attends a "League of Nations dinner" (1/15/1932).
 
Perhaps most surprising is how personal affairs infiltrate the Donaldson diaries. Sometimes such asides are amusing
 
for example, in one entry he writes that he was "attacked by goose without cause" (3/31/1917). Elsewhere, they're more serious and evocative. Shortly after Donaldson writes that his first wife, Julia, is "diagnosed melancholia" and put on an "opium treatment" (9/13/1904), he records her suicide: "our dear Julia was found dead by her own hand at 7 o'clock this morning. She was still warm when found. It is desolation—the saddest of days" (11/10/1904). Several years later, he notes his engagement to Emma Brock (3/1/1907) and, still later, the birth of a son Harry, (3/16/1920). In the 1930s, his health appears to deteriorate: Donaldson begins tracking weight fluctuations on 7/13/1931 and undergoes a metabolism test on 10/17/1934. His last entry, written in third-person in a different hand, appears to have been maintained by someone else, possibly Emma. The diary concludes, "The end at 2 a.m." (1/23/1938).