The Compositions series contains sketches, texts and manuscripts of 30 of Kelsey Jones’ major compositions. The works are arranged chronologically. Composition dates, durations and instrumentations are provided when possible.

The Biographical Information series contains correspondence, programmes and a photograph of Kelsey Jones. The series consists of cards and letters to or from Kelsey Jones; as well as a selected of programs he found interesting. The series is arranged chronologically, and are divided by subject headings (the subject headings chosen for this section were indicated by Kelsey Jones himself). The series includes correspondence of special note to/from Lord Beaverbrook, John Beckwith, Marvin Duchow, Herman Geiger-Torel, Harold Hamer, Leonard Isaacs, George Johnston, George Little, Ernest MacMillan and Healy Willan.

The Photographs Series contains autographed photographs of Alban Berg, Fritz Heinrich Klein, and Bernhard Sekles, as well as photographs of Julius Schloss. Additional photographs printed in other series of the collection are listed below as well.

The Clippings Series contains articles and clippings from newspapers, magazines and journals that pertain to people, music, and specific periods of Schloss’s life. Items are arranged topically.

The Concerts & Competitions Series contains programs, correspondence and reviews for performances of Schloss’s compositions. Items are arranged by date of event.

The Studies & Analyses Series contains Schloss’s academic work from his studies at the Hoch Conservatory in Frankfurt and under Alban Berg, as well as his analyses of works by other composers. Listed items are grouped by genre: academic studies, analyses of works by other composers, studies of unknown works, transcriptions of melodies, and sketches.

The Compositions Series contains Schloss’s 29 completed compositions and arrangements and 6 unfinished works. The works are arranged alphabetically by uniform title. Composition dates, durations and instrumentation are provided when possible. Instrumentation for large ensemble works is listed according to the schema [Fl Cl Ob Bs – Hn Tp Tb Tu – Perc – Str] with supplementary instruments listed.

The Correspondence Series contains letters to or by Julius Schloss to the listed individual, except where noted. Additional correspondence pertaining to other series in the collection is listed below as well.

This series contains formally published works either relating to Expo 67 and its exhibitions, or published by Expo 67 and affiliated groups. Contains some published exhibition catalogues.

This series consists of glass plate negatives and other photographic materials with their original boxes relating to the Feather Book, ornithology, falconry, McGill University Library, and Casey Wood. The majority of the glass plates were produced in Berlin, Germany by Agra, while a few were produced in London, England and Toronto, Canada; which is indicated on the boxes the plates were contained in. On many of these boxes, McGill University librarian Dr. G. R. Lomer’s name appears, indicating these plates and photographic materials were used for library-related activities. Most of the plates, photographs, and photographic negatives (1927, 1930, 1956) show pages from the Feather Book by Dionisio Minaggio. Other glass plate negatives and photographic material depict artwork or images relating to ornithology and falconry, a portrait of Casey Wood (1927), Gronvold’s painting of Wood’s parrot John III (1930?), an ornithological archeological exhibit in the Redpath Library (1924), and library stacks in the Redpath Library (1924).