Some photometrical measurements
By: by W. G. Smith ...
Series: University of Toronto studies. Psychological series -- vol. II, no. 2, p. 111-118
Publisher: The University library: pub. by the librarian
Published: 1904
Place of publication: Toronto
Language: eng
Number of pages: 36
Notes: With Chown, Susie A. Combinations of colours and uncoloured light. [Toronto, 1904]

Half-title.