The Nobbs fonds consists of the work of Percy Erskine Nobbs, George Taylor Hyde, Nobbs and Hyde, Nobbs and Valentine, and Nobbs and Nobbs. 526 projects are documented in the Percy Erskine Nobbs Fonds. Architectural drawings form the core of the fonds, providing a comprehensive listing of the drawings by Percy Nobbs and his associates. Arranged chronologically, the inventory reflects respectively the development of the partnerships Nobbs and Hyde (1910-1944), Nobbs and Valentine (1945-1950), and Nobbs and Nobbs (1950-1960). Hugh A. I. Valentine worked only briefly with Nobbs, spending the bulk of his career with the Bell Telephone Company of Canada. His commissioned drawings and student notebooks cannot be directly related to his work with Nobbs, but are nonetheless described in subfonds 8. Subfonds 6 and 7 describe Percy Nobbs's personal papers and three-dimensional objects designed by him which are in the Canadian Architecture Collection.

Includes correspondence, journals, books, manuscripts, photographic material, audio tapes, course material, research material, postcards, book reviews, conference proceedings, thesis, and articles for publication.

The bulk of Eakins' papers concern his work as a geologist and consultant for the mining industry. His Peruvian period is covered by correspondence, reports and newsletters on the San Jose prospect for the Cerro de Pasco Corporation, 1952-1956. His work with Mineral Management Ltd. (1956-1959) is documented by correspondence on mining investments and exploration. There are also files raised by Eakins for his reports on the Axel Heiberg Island project, 1962-1969 and Eakins' participation in the first Canadian workshop on "Education in the Earth Sciences" (Sudbury 1971), and the International Geological Conference of 1972. There is also correspondence, memoranda and notes relating to the history of geology at McGill and in Québec, and some correspondence with Geology Department staff members and students.

Fonds consists of letters written to P.M. Roget by various people, 1830-1856.

Fonds shows Dr. Philip Franklin's relations and activities with Sir William Osler regarding the Post-Graduate Scheme in England and the American Hospital in England during WWI. The fonds contains letters, telegrams and an agenda and printed material regarding a meeting about the American Hospital.

Fonds consists of six letters, with four manuscript letters from Rilke written between 1896 and 1922 and two discussing letters discussing these. The four letters from Rilke are addressed to various correspondents, including on 8 November 1896 to the author Gabriele Reuter regarding her book, 15 October 1904 to Anette Vedel, and 9 July 1907 to an unidentified correspondent. The fourth letter dates likely from August or September 1922 and is addressed to Elfriede Nicolaus. The two later letters which discuss the Rilke letters include one dated 13 December 1954 from Hedvig Wahlgren regarding the date of the 1922 letter to Nicolaus and one dated 29 November 1955 from Ruth Fritzsche (née Rilke) to McGill Librarian Richard Pennington.

This series consists of research, writing, and correspondence files relating to Casey Wood's major and minor publications and unpublished works, as well as, others assisting in Wood's publications, research, or writing about Wood. The majority of the research and writing materials for Wood's published and unpublished works were created between 1920-1940, while other materials collected during Wood's life, those associated with his memoir and obituary, date from approximately 1850-1943.
Some prominent writings by Wood include “Introduction to the Literature of Vertebrate Zoology” (1921-1956), his unpublished memoir (ca. 1850-1939), “Fundus Oculi” (1911-1934), Wood family history (1920-1940), “Birds of Fiji” (1920-1928), “Through Forest and Jungle in Kashmir and North India” (1921-1934); Persian, Arabic and Hindustani manuscripts (1927-1934); and “The Art of Falconry” (1942).
The series consists of many volumes and files containing a number of record types including manuscripts, typescripts, proofs, publications, photographs, correspondence, clippings, printed material, postcards, journals, administrative and financial records, and artwork. Some of the volumes are scrapbooks containing many of these materials mounted within, while others include similar materials bound within. These volumes do not necessarily have a clear organization but are sometimes arranged chronologically or by correspondent.

There are 2230 incoming and outgoing pieces of correspondence including letters, postcards, notes, telegrams, and cards. Subseries 1) Introduction to the Literature of Vertebrate Zoology includes 1313 pieces of correspondence, the largest number of correspondence within the collection.

This series consists of 23 volumes and 6 files focusing on travel, research, and expedition activities conducted during Casey Wood's ornithological research trips from 1920-1937, including periodical and newspaper publications written by Wood during this time. This series consists of manuscripts and articles relating to letters to friends and family providing accounts of his travels, clippings, photographs, printed ephemera, photostats, artwork, and feathers from John III. Some of the volumes contain manuscripts, notes, and/or photostats, while others are scrapbooks containing multiple record types seemingly curated, arranged and mounted by Wood or as directed by him.
Within this series are 209 incoming and outgoing correspondence including letters, notes and cards. Individuals in correspondence with Wood include Cora Raymond, G. R. Lomer, E. V. Sanderson, Sir George Perley, Sir Charles Major, H. Kirke Swann, Edith Hayes, Emma Shearer Wood, W. E. Wait, Sun Engraving Co., Taylor and Francis, Bitty and Seaborne Ltd., Stuart Baker, G. M. Henry, and Allan Brooks. Other individuals present in this series include Mabel Satterlee, L. F. Struthers, W. J. Belcher, J. Sutton, G. M. Henry, F. Marjorie Fyfe, J. C. Harrison, Alexander Wetmore, and Dr. Andreas Nell.
Places referenced within this series' files include South America (1920), British Guiana (1922), Fiji (1923), Oceania, New Zealand, Australia (1923-1924), England and Scotland, Ceylon (1925-1934), Colombo, Kandy, and Italy (1934-1936). Some topics and research areas of note include ornithology, zoology, bird protection, travelling, nightingales (1920-1934), John III (1924, 1937), “Coloured Plates of the Birds of Ceylon” (1925-1927), Emma Shearer Wood and Blacker Library collections, Sinhalese weights, Wood’s heath, Ali ibn Isa, and political printed material on Italy during the late 1930s.
There are also a number of photostats of publications or manuscripts copied approximately in 1937 related to Emperor Frederick II’s “de Arte Venandi cum Avibus.” These photostats were used for reference during these research trips for Casey A. Wood and F. Marjorie Fyfe’s published translation “The Art of Falconry.”

The D'Aigle papers fall into three series: diaries, correspondence and a scrapbook of photographs and memorabilia. The diaries (1912-1914, 1927, 1935-1952) are largely devoted to a day-by-day account of prospecting journeys. Correspondence with members of his family, partners, prospective financial backers and government mining bureaus covers the years 1900-1959. The scrapbook contains personal mementos, newsclippings about D'Aigle, photographs of his journeys, lists of supplies for prospecting trips, and maps, some drawn by D'Aigle himself.

A small number of letters between Graham and E.B. Tiffany, an offical of Henry Birks and Co., discuss the occurrance of diamonds in Canada (1949). A record of Graham's work as a teacher in his field is a set of notes on the use of the petrographic microscope.