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Archival description
University of Toronto Archives and Records Management Services McLennan, John Cunningham
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Joseph Oscar Wilhelm fonds

  • UTA 1952
  • Fonds
  • ca. 1927-1930

Fifty-five glass lantern slides document helium experiments that took place in Department of Physics in the 1920s. They originally belonged to Prof. Joseph O. Wilhelm, lecturer and co-author with J.C. McLennan of various articles. The slides were used to illustrate these articles and may also have been used for teaching. Includes original spectrographic data for the Raman Effect, views of scientific laboratory equipment, mostly likely the helium laboratory, as well as line drawings of the Helium Liquefier and the Oxygen Apparatus.

Wilhelm, Joseph Oscar

Janet Cumming McLennan fonds

  • UTA 1552
  • Fonds
  • 1867 - ca 1942

Fonds consists of 2 accessions

B1965-0012: Scrapbooks (1888-1930) compiled by Janet Cumming McLennan as a memorial to her brother, Sir John Cunningham McLennan, professor of physics at the University of Toronto; correspondence; "A message to Youth" compiled by Janet C. McLennan (1941); certificates, diplomas and resolutions re Sir John Cunningham McLennan. Photographic reproductions. (8 boxes, 1867-ca. 1942) [Series 1 and 2]

B1993-0037: Manuscript by Arthur V. White, entitled "The McLennan laboratory: its initiation and purpose" (1936); copy of the Medical Research Council's (UK) Report on radium beam therapy research, 1934-37", with explanatory notes by Janet McLennan and copies of correspondence bound in; photo of J.C. McLennan in his lab (1928). (1 box, 1928-1938) [series 3 and 4]

McLennan, Janet Cumming