Directions for collecting birds' stomachs
Contributors: United States. Bureau of Biological Survey; United States. Department of Agriculture
Series: Biological Survey--Circular -- no. 46; Circular (United States. Bureau of Biological Survey) -- no. 46.
Publisher: United States Department of Agriculture, Biological Survey
Published: 1905
Place of publication: Washington, DC
Language: eng
Subjects: Birds; Dissection; Research
Notes: "Issued February, 1905."

At head of title: United States Department of Agriculture, Biological Survey.