The intensity of the earth's penetrating radiation at different altitutdes and a secondary radiation excited by it
By: by J.C. McLennan and E.N. Macallum.
Contributors: Macallum, E. N.
Series: CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 87299; University of Toronto studies -- no. 41.
Publisher: The University library ; pub. by the Librarian
Published: 1997
Place of publication: [Toronto]
Language: eng
Format: Microform
Number of pages: 11
Subjects: Radiation.; Radioactivity.
Notes: Cover title.

Original issued in series: University of Toronto studies. Papers from the physical laboratores ; no. 41.

Tables.

"Reprinted from Transactions of the Royal Society of Canada, 3rd series, vol. V."

Includes bibliographical references.

Filmed from a copy of the original publication held by the Metropolitan Toronto Reference Library. Ottawa : Canadian Institute for Historical Microreproductions, 1997.

p. 37-45 : ill. ; 25 cm.