Tea, coffee, and cocoa preparations.
By: By Guilford L. Spencer ... with the collaboration of Mr. Ervin E. Ewell ...
Contributors: Ewell, Ervin Edgar, 1867-1904.
Series: U. S. Dept. of agriculture. Division of chemistry. Bulletin -- no. 13 ... Foods and food adulterants ... pt. 7; Bulletin (United States. Division of Chemistry) -- no. 13, pt. 7.
Publisher: Govt. print. off.
Published: 1892
Place of publication: Washington
Subjects: Tea -- Adulteration.; Coffee -- Adulteration.; Cacao -- Adulteration.