Titre Observations on the pathology of the jack pine / by James R. Weir.

Adresse Bibliographique

Washington, D.C. : U.S. Dept. of Agriculture, 1915.

Exemplaires

Description	10 p., 1 leaf of plates : ill. ; 24 cm.
Collection	Bulletin of the U.S. Department of Agriculture ; no. 212
Notes	Caption title.
With:	Bound With: A maggot trap in practical use : an experiment in house-fly control.
Sujet	Jack pine -- Diseases and pests.
No Doc. Officiel	A 1.3:212