Smithsonian Report, 1941. — Craighead 



Plate 3 



1. Salvaging Beetle-killed Ponderosa Pine Timber on the Shasta Na 



TioNAL Forest. Calif. 



The inff'sted logs are being trucked to the mill over forest roads. July 1939. 



2. Burning the infested bark Along the Bole of a large Ponderosa Pine 



Tree. 



Stanislaus National Forest, Calif. May 1935. 



