Authors: Weir, James R.; Hubert, Ernest E.
Source: Journal of Forestry, Volume 17, Number 1, 1 January 1919, pp. 21-35(15)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: Scientific Assistant, Office of Investigation in Forest Pathology, Bureau of Plant Industry, Missoula, Mont.
Publication date: January 1, 1919