The Chance Papers include two pocket diaries—and various undated notebooks—recorded during his study at Cambridge (1936 and 1942) and 14 pocket calendars spanning January 1950 to June 1951 (with the exception of August 1950 and January, April, and May 1951). These calendars include miscellaneous research notes, formulas, appointments, lectures, travel, and meetings. In fact, at least one entry (4/20/1950) notes a meeting with "Roughton," presumably Francis Roughton, for which APS also holds papers. The October 1950 calendar also includes what appear to be Chance's first impressions of numerous job or fellowship candidates. Those include a "Maison," whom he describes as a "real 'tough guy,'" and a "Brokerk," whom he praises "good appearance, clean-cut, good talker, good manner' but adds "has done sound but not outstanding research. Surely no Nobel prize winner."
 
Two personal notebooks, dated "April 1983" and "January 1980," include Chance's lengthiest and most unusual records. The 1980 notebook features haphazard notes with names, phone numbers, appointment times that continue as late as December 2000. Researchers will also discover a trove of ephemera interspersed in the pages, including appointment cards (e.g. "Male Fertilization Section"), post-it notes, stress test consent forms, a heart diagram, and even a letter from Penn concerning a biopsy. The 1983 notebook, which spans April 12 and June 16, appears to be a record of Chance's ballroom dancing. (Yes, you read that correctly.) While much of this notebook is empty, early pages include a schedule for ballroom dancing classes and notes regarding the Foxtrot, Rhumba, Cha-Cha, Tango, and other dances.
 
Researchers investigating Chance's career may also consult his lab binders, some of which feature dated entries (Series III). As a yachtsman, he also records weather conditions in some loose, dated pages (Series X, boxes 516 and 517).

The Britton Chance Papers include two pocket diaries dated 1936 and 1942, 14 pocket calendars maintained between 1950 and 1951, and two personal notebooks dated January 1980 and April 1983. In aggregate, these materials traverse his doctoral study at Cambridge and his career at the University of Pennsylvania. His diaries may interest researchers examining Chance's research and the fields of biochemistry and biophysics more generally.
 
The Chance Papers include two pocket diaries—and various undated notebooks—recorded during his study at Cambridge (1936 and 1942) and 14 pocket calendars spanning January 1950 to June 1951 (with the exception of August 1950 and January, April, and May 1951). These calendars include miscellaneous research notes, formulas, appointments, lectures, travel, and meetings. In fact, at least one entry (4/20/1950) notes a meeting with "Roughton," presumably Francis Roughton, for which APS also holds papers. The October 1950 calendar also includes what appear to be Chance's first impressions of numerous job or fellowship candidates. Those include a "Maison," whom he describes as a "real 'tough guy,'" and a "Brokerk," whom he praises "good appearance, clean-cut, good talker, good manner' but adds "has done sound but not outstanding research. Surely no Nobel prize winner."
 
Two personal notebooks, dated "April 1983" and "January 1980," include Chance's lengthiest and most unusual records. The 1980 notebook features haphazard notes with names, phone numbers, appointment times that continue as late as December 2000. Researchers will also discover a trove of ephemera interspersed in the pages, including appointment cards (e.g. "Male Fertilization Section"), post-it notes, stress test consent forms, a heart diagram, and even a letter from Penn concerning a biopsy. The 1983 notebook, which spans April 12 and June 16, appears to be a record of Chance's ballroom dancing. (Yes, you read that correctly.) While much of this notebook is empty, early pages include a schedule for ballroom dancing classes and notes regarding the Foxtrot, Rhumba, Cha-Cha, Tango, and other dances.
 
Researchers investigating Chance's career may also consult his lab binders, some of which feature dated entries (Series III). As a yachtsman, he also records weather conditions in some loose, dated pages (Series X, boxes 516 and 517).

Roughton's notebooks are scattered across eight boxes. Diaries include a 1927 reading/research diary
 
12 appointment diaries maintained between 1928-35, 1954-55, 1962-65
 
and 25 lab notebooks spanning 1940-66 (with exception of 1947-8 and 1954).
 
The research diary includes reading notes as well as formulas, illustrations, and notes related to experiments and lectures.
 
Appointment diaries include sketches and doodles, account balances, breakfast and dinner plans, to-do lists, reading lists, meetings, lectures, and various ephemera. While entries focus on his research and career, Roughton sometimes intersperses personal notes, such as family visits (8/9/1929), vacation plans (3/13/1931), and social outings (12/13/1933). An appointment diary for 1965 tracks his finances between 1947-1972.
 
The laboratory notebooks stretch the definition of diary, and many—not included here—lacking complete dates or years. In addition to notes related to experiments, meetings, and lectures, the laboratory notebooks often include various ephemera such as loose pages of notes, illustrations, and conference programs. For some years, Roughton maintains multiple notebooks. For example, there are at least three books related to 1951 scattered across folders in box 110 and 111. Researchers will find at least an additional 1953 notebook in a "Misc. Undated Folder" in box 116. The 25 books identified in this note include only dated laboratory notebooks
 
researchers interested in Roughton's research would be well-advised to review all laboratory notebooks available in boxes 109-116.

In 38 notebooks that span his career at Cambridge and beyond (1927-66), Francis Roughton records voluminous notes related to his research, meetings, experiments, and finances. These volumes may interest researchers examining Roughton's career and the field of respiratory physiology more generally.
 
Roughton's notebooks are scattered across eight boxes. Diaries include a 1927 reading/research diary
 
12 appointment diaries maintained between 1928-35, 1954-55, 1962-65
 
and 25 lab notebooks spanning 1940-66 (with exception of 1947-8 and 1954).
 
The research diary includes reading notes as well as formulas, illustrations, and notes related to experiments and lectures.
 
Appointment diaries include sketches and doodles, account balances, breakfast and dinner plans, to-do lists, reading lists, meetings, lectures, and various ephemera. While entries focus on his research and career, Roughton sometimes intersperses personal notes, such as family visits (8/9/1929), vacation plans (3/13/1931), and social outings (12/13/1933). An appointment diary for 1965 tracks his finances between 1947-1972.
 
The laboratory notebooks stretch the definition of diary, and many—not included here—lacking complete dates or years. In addition to notes related to experiments, meetings, and lectures, the laboratory notebooks often include various ephemera such as loose pages of notes, illustrations, and conference programs. For some years, Roughton maintains multiple notebooks. For example, there are at least three books related to 1951 scattered across folders in box 110 and 111. Researchers will find at least an additional 1953 notebook in a "Misc. Undated Folder" in box 116. The 25 books identified in this note include only dated laboratory notebooks
 
researchers interested in Roughton's research would be well-advised to review all laboratory notebooks available in boxes 109-116.

The John Slater Papers include abstracts from his diaries, available as loose, mostly typed pages, which traverse his consequential career in physics (1900-1975). These abstracts trace Slater's doctoral study at Harvard (1923) and postgraduate work at Cambridge University, appointment at MIT (1930), work at the Laboratory for Nuclear Science during World War II, and late-career at the University of Florida (after his retirement from MIT in 1966). His diaries contain notes about a trip to Japan (including Hiroshima and Nagasaki) in the fall 1953, meetings with defense contractors (such as Lockheed Martin) throughout the 1950s and 1960s, a sighting of Sputnik (7/20/1958), notes about an "NSF proposal for computing center" (4/30/1965), associations with and publications of APS members (7/7/1951, 7/7/1972), and Slater's own personal affairs, as excerpted in Selected Quotations. As such, these abstracts may interest scholars researching John Clark Slater's career in the field of physics, biochemistry, atomic history, and the history of science more broadly, as well as those considering World War II and military contractors in the Cold War period, the space race, the history of computing, and the institutional history of the American Philosophical Society.; To supplement these diary abstracts, researchers might choose to expand their exploration of the Slater Papers, which also contain 133 research notebooks (1944-1976), a lengthy series of folders, containing lectures, scientific notes, drafts of manuscripts and papers, correspondence from his collaboration with the Los Alamos Labs (1966-1970), and correspondence relating to the National Academy of Science.