The collection consists primarily of correspondence on natural history topics between scientists and natural historians. Letters are sometimes accompanied by journal articles.

Figures with significant correspondence within the collection include: Casey Albert Wood, Henry Mousley, Robert Ridgway, and Bowdler Sharpe.

File consists of reproductions of photographs and negatives depicting staff and students of the Bishop's Medical and Dental Faculty, originally taken by Elizabeth Hearn Milner. These images were included in her book, "Bishop's Medical Faculty, Montreal, 1871-1905: including the affiliated dental college, 1896-1905," published in Sherbrooke, Quebec, in 1985 and available in McGill's library catalogue.

The collection consists of seven leaves of typewritten poems, with a few handwritten annotations, possibly made by the author, as well as a typewritten copy of the poem collection "Svendborger G[r]dichte."

The collection consists of a typescript of the author's book "Salon sketches" and a copy of the 1938 edition titled "Salon sketches: biographical studies of Berlin salons of the emancipation," published by Bloch Publishing Company in New York. It also contains newspaper clippings featuring reviews of the book from 1938 and 1939, as well as two articles from 1966 commemorating Professor Bertha Meyer's 50 years of teaching at McGill University.

Consists of a letter from Lord Selkirk to Captain Benjamin Walker dated 14 June 1816 concerning the sale of Selkirk’s land at Salmon River, New York, and his impending departure for the Red River.

The typescripts are arranged into four series. A: manuscripts related to Oregon; B: manuscripts related to Washington; C: manuscripts related to Canada and particularly British Columbia; C: manuscript related to the history of Oregon and the fur trade.

In series C, of particular interest are the first and second journal of Simon Fraser, 1806, 1808; the voyages of the ship Columbia, 1787-1789; and the journal of John Work, Chief Factor, Hudson’s Bay Company, Astoria, 1824-1834.

Consists of a notebook Robson kept as a student at the Banting Research Institute at the University of Toronto from June to September, 1930. The notebook comprises over 60 manuscript pages, plus 31 manuscript pages attached to the end, 1 loose leaf of manuscript medical notes, approximately 50 ink drawings of various sizes of experiments, 26 black and white photographs pasted in, including a photograph of Sir Frederick Grant Banting in his office, the Banting Research Institute and its faculty, and experiment apparatuses. Also includes 13 mimeographed pages (pasted in) containing 12 different experiments, the printed programme for the formal opening of the Banting Institute on 16 September 1930, and 9 newspaper clippings pasted in related to the opening of the Institute.

The collection contains business and family correspondence, land grants, financial and judicial records, etc. of the seigneurial families Chartier de Lotbinière, Rigaud de Vaudreuil, Lefebvre de Bellefeuille, Lemoyne de Longueuil, Lambert Dumont, Chaussegros de Léry, Hertel, Harwood, and of allied families. Much of the material concerns the Seigneurie de Vaudreuil. Other material include correspondence (1809-1821) with Joseph Bouchette; extracts from the registers (1667, 1732) of the Conseil Souverain and the Conseil Superieur; and documents concerning Newton Township, the Seigneurie des Mille-Iles.

Collection consists of correspondence, mail-order course prospectus entitled, “How to Become a Mechano-Therapist,” and 30 instructional pamphlets comprising the correspondence course. Also includes reprint from the Journal of the American Medical Association debunking the College. Final file contains provenance records and information about the College and its founder compiled by donor. Framed diploma from the College is also included (Osler ART 101).

The collection consists of autographed signed letters from multiple senders, representing authors, artists, politicians, and other figures from Canada and Europe. The letters were accumulated by the Rare Books and Special Collections unit of the McGill Library over many years and assembled into the collection.