Methods of collecting and preserving pollen for use in the treatment of hay fever
By: by James W. Kelly
Series: Circular / United States Department of Agriculture -- no. 46; Circular (United States. Dept. of Agriculture) -- no. 46.
Publisher: U.S. Dept. of Agriculture
Published: 1928
Place of publication: Washington, D.C
Language: eng
Number of pages: 10
Subjects: Pollen; Collection and preservation
Notes: Caption title.

"Contribution from Bureau of Plant Industry."

Bibliography: p. 9.