Author: Hall, Ralph C.
Source: Journal of Forestry, Volume 34, Number 2, 1 February 1936, pp. 141-146(6)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: Assistant Entomologist, Bureau of Entomology and Plant Quarantine in cooperation with the Central States Forest Experiment Station, Columbus, Ohio
Publication date: February 1, 1936