Cat logging in the Douglas fir area
By: by Philip Workman.
Published: 1940
Language: eng
Number of pages: 33
Subjects: Logging -- Machinery -- Northwest, Pacific.; Caterpillar tractors.
Notes: Typescript.

Included mounted photographs.

From the Oregon State College School of Forestry collection of senior forestry papers, 1910-1956.

Includes bibliographical references (leaf 33).