Photograph of a Duboscq - Leitz colorimeter
[Toronto?]
[ca. 1921?]
1 photograph ; 30 x 20 cm.
Copy of a black and white photograph. Shows a Duboscq-Leitz colorimeter manufactured by E. Leitz, Inc. in New York.
insulin:P10078
MS. COLL. 241 (Best), Box 109, Folder 15 Title based on content of photograph. Best used this type of colorimeter in his work on the discovery of insulin.
Colorimeters