The effect of black rot on turnips
Subtitle: a series of photomicrographs, accompanied by an explanatory text
By: By Erwin F. Smith ...
Series: Bulletin / U.S. Department of Agriculture. Bureau of Plant Industry -- no. 29; Bulletin (United States. Bureau of Plant Industry) -- no. 29.
Publisher: Govt. Print. Off.
Published: 1903
Place of publication: Washington
Language: eng
Number of pages: 20
Subjects: Black rot; Turnips; Diseases and pests
Notes: At head of title: U.S. Department of Agriculture. Bureau of Plant Industry ...