"Architectural Drawings, 1903-10, 45 drawings." The archive's collection includes student drawings of a design for a secondary school; plans, elevations, and details of St. Machar's Cathedral, West Church and Harthill Castle in Aberdeen; drawings for the intermediate exam of the Royal Institute of British Architects and miscellaneous drawings of details of historical European architecture.

"Dessins architecturaux, 1903-1910, 45 dessins." La collection comprend des dessins d'étudiant pour une école secondaire; les plans, les élévations et les détails de la cathédrale St. Machar, de la West Church et de Harthill Castle à Aberdeen; des dessins pour l'examen intermédiaire du Royal Institute of British Architects et des dessins divers d'immeubles historiques d'architecture européenne.

The David Hume Collection contains letters and other ephemera brought together from multiple acquisitions. The principal manuscripts are found in is the bound volume containing letters from David Hume to the Comtesse de Boufflers. There are also letters from Jean-Jacques Rousseau and others for a total of 59 letters. This collection of letters was the basis for the anonymously edited Private Correspondence of David Hume with Several Distinguished Persons, Between the Years 1761 and 1776. Now First Published From the Originals. (London: Printed for Henry Colburn and Co., 1820.) One of the McGill copies of this book belonged to the Montreal lawyer and book collector Frederick Griffin (1798-1877). In addition to this volume there are eight other Hume letters. Some of these have been published by Professor Klibansky and Ernest C. Mosser in New Letters of David Hume. (Oxford: Clarendon Press, 1954). Finally, there are photographic copies of Hume manuscripts held by the Royal Society of Edinburgh and typed copies of official letters on Canada from the manuscripts of Sir Mark Dalrymple.

"Architectural Drawings, 1910, 2 drawings." Included are student drawings of details of St. Mary's Church in Beverley, East York, England.

"Dessins architecturaux, 1910, 2 dessins." Dessins d'étudiant. Détails de l'église St. Mary's à Beverley, East York (Angleterre).

The David L. Johnston fonds consists of mainly of correspondence for Centre for Medicine, Ethics and Law, 1996-1998.

Fonds documents Thomson's research, his consultations with government, and his involvement in learned societies and university associations. As well, a significant percentage of the material is of a nonprofessional and private nature, focussing on Thomson as a public speaker.

Papers devoted to research consist of 18 cm of background notes, summaries and extracts on nutrition, protein and carbohydrate metabolism, and vitamins. Approximately .6 m of card indexes contain summaries of Thomson's professional reading in the 1920s and 1930s. For the 1940s and 1950s, the papers deal mainly with consulting. They consist of correspondence and reports for the Defence Department (1942- 1946), the Canadian Council on Nutrition (1946-1955) and the Canadian Council on Dietary Standards (1950-1957). Nutrition and research in this field are also the subjects of correspondence with the Royal Society, the Medical Research Council, and the Canada Council during this period. Thomson's work as a university teacher is documented by lecture outlines and examination question papers. His administrative positions led to his involvement in the National Council of Canadian Universities. These correspondence files (1946-1949) deal with academic exchange, scholarships, travel funds and conferences.

Speaking engagements are recorded by correspondence (1953-1954) and in drafts for speeches delivered between 1950 and 1961. Only a few of these discuss scientific topics; most discuss the nature of education, the relation of science to society, and of science to literature. There are also book reviews and background files of quotations and humorous poetry. Correspondence files, which Thomson generated as the Chairman of the Nutrition Committee of the Montréal Council of Social Agencies, are also found here (1939-1944).

Financial affairs, personal purchases and charities, travel expenses, and publications (particularly his Life of the Cell) dominate the private papers (1925-1963). There are also correspondence files maintained by Thomson's secretary during his last illness.

Fonds documents D.L. Philip's studies of the Institutes of Medicine, 1857-1858, with Dr. William Fraser. The fonds contains one notebook with loose notes.

MacFarlane's 1966 research project on the impact of industrial mechanization in Brazil is documented by notes, correspondence, reports, articles and financial records.

The fonds consists mainly of documents relating to Gales' private life, including correspondence with family and friends during the war years (1931-1946) and correspondence documenting his social networking amongst graduates (1978-1985). The fonds also includes agendas (1967-1982), covering his years working at McGill University and into retirement.

Fonds contains copies of two essays, “My Life as a Student and Teacher at McGill: 1934-1974 (1974)”, and “Innovation and Personal Strategies: A Study of Work in a New Outpatient Clinic”, co-authored with Anita Heller (1976).

These scientific papers consist of an autograph article (with photocopy) on 'Nematophytoncrassum' (ca 1897), and an undated manuscript statistical table.