A method for the detection of small quantities of coumarin
Subtitle: particularly in factitious vanilla extracts
By: by H.J. Wichmann
Contributors: United States. Bureau of Chemistry
Series: Circular / United States Department of Agriculture, Bureau of Chemistry -- no. 95; Circular (United States. Bureau of Chemistry) -- no. 95.
Publisher: U.S. Dept. of Agriculture, Bureau of Chemistry
Published: 1912
Place of publication: Washington, D.C
Language: eng
Subjects: Coumarins; Vanilla; Plant extracts; Analytic Chemistry
Notes: Caption title.

"Issued April 6, 1912."