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.

The collection consists primarily of manuscripts and typescripts of papers written on natural history topics, such as insects, birds, marine life, plants, and reptiles. Most of the documents concern the collection and cataloguing of specimens, and the identification of new species. Also included are research notes, notebooks, field notes, lecture notes, correspondence, off-prints, proofs, and galley proofs, as well as drawings and mock-ups of illustrations for printing.

The Philippines are the most heavily-represented country in the subject material of the collection, followed by other areas of South-East Asia and the South Pacific, including Malaysia, Indonesia, India, Singapore, Taiwan, the Soloman Islands, and Hawaii. There is also material representing North and Central America, including Mexico, the United States of America (especially California and Alaska), El Salvador, the Galapagos, and Canada (especially Quebec and Newfoundland). Some works also relate to China, the British Isles, Russia, Japan, New Zealand, and Socotra (Yemen).

Significant figures represented in the collection include: Richard Crittenden McGregor, A.E. Wileman, Edward Charles Stuart Baker, Frank Spaeth, Casey Albert Wood, Averil Lysaght, Harry S. Swarth, Henry Seebohm, Henry George Vennor, Roy E. Dickerson, J. Muir, and Charles Fuller Baker.

Highlights from the collection include: a manuscript copy of Joseph Banks’ journal from his 1768-1771 voyage on the Endeavour, likely made by Maria Dawson Turner; a manuscript, and several annotated typescript versions of Volume 5 of E.C. Stuart Baker’s “Fauna of British India birds”; an assortment of Casey A. Wood’s research notes; annotated proofs, galley proofs, and a mock-up of Richard C. McGregor and Elizabeth J. Marshall’s “Philippine birds for boys and girls;” and a binder of ornithological notes recorded by G.G. Ommanney and others in the Whitlock Bird Sanctuary and surrounding district near Hudson, Quebec.

Many of the manuscripts in the collection were published by the Philippine Journal of Science; also included is correspondence related to publication in the journal, especially related to editing and corrections.

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.

This collection consists chiefly of aerial photographs as well as some stereograms, dated from 1930 to 1976. The first six containers consist of Landsat 1:1 000 000 Prints & Negatives. The photographs depict various geographic and geological features including mountains, deserts, volcanoes, farmland, lakes, and rivers. Some photographs depict roads, settlements, and dams. Canada and the United States features prominently in this collection however there are also photographs of the Caribbean, South America, Africa, Asia and Oceania. There are also documents most of which are indexes to the photographs. There are also shipping transmittals, survey cards, letters, a purchase order, and diagrams with flight lines and photo set numbers. The maps in this collection are of flight lines (some with film roll numbers added), hand-drawn maps of locations in the photographs, geographic maps, and physiographic maps.

Collection consists of programs related to an appearance by Harry Belafonte in Montreal in support of the Society to Overcome Pollution's environmental aims. Also contains a clipping, manuscript notes, and a typescript signed Mona Elaine Adilman about Quebec environmental legislation.

This collection, assembled by the Faculty of Dentistry, consists of curricula vitae, photocopied notices of papers Francis presented at conferences, and photocopies of his thesis and some of his published articles.

The Julius Schloss Collection consists of Julius Schloss’s complete portfolio of published and unpublished compositions, sketches, studies and analyses. In addition, it contains documentary artefacts, including correspondence, newspaper, magazine and journal clippings, concert and competition programs, media reviews, and photographs, that chronicle both the early life of this German-Jewish composer in Europe and his later days in exile in Shanghai and the United States.
The content of the collection pertains to several lines of historical research: First, Schloss’s close relationship with Alban Berg as a personal assistant and chief copy editor, as well as his interaction with other contemporaries in Vienna during the 1920s, may offer new insight in studies of the Second Viennese School. The items of Bergiana, including a handwritten Baudelaire poem by Berg which served as a “secret program” to the Lyric Suite and a selection of correspondence surrounding Berg’s last wishes for the Lyric Suite score, are particularly valuable. Second, Schloss’s ten-year exile in Shanghai, documented in assorted correspondence, programs, reviews and miscellaneous artefacts, may provide a new account of the Shanghai generation. Finally, the continuation of Schloss’s life in the United States as a struggling composer and teacher bears witness to the difficult conditions for the American émigré population after World War II.

This collection is composed of McGill memorabilia collected by Ian C. Pilarczyk between 2000 and 2018, and includes articles, news clippings, programs (mostly football), pamphlets, photographs, objects (such as pins, buttons, medals, ribbons, humidors, spoons), addresses, medical notebooks, LPs and prints.

The fonds consists of a typed manuscript and a xerox sheet containing information collected by R.C. Amaron about Edwin Hatch, prepared for Dr. R. Williamson of England.

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.