I06 LOGGING 



Hopkins, A. D.: Practical Information on the Scolytid Beetles of North 

 American Forests. I. Barkbeetles of the Genus Dendroctonus. Bui. 

 No. 83, Part I, U. S. Bureau of Entomology, 1909. 



: Insect Injuries to Forest Products. U. S. Department 



of Agriculture, Yearbook, 1904, pp. 381-398. 



: Pinhole Injury to Girdled Cypress in the South Atlantic 



and Gulf States. Cir. 82, U. S. Bureau of Entomology, 1907. 



Peters, J. Girvin: Waste in Logging Southern Yellow Pine. Yearbook of 

 U. S. Department of Agriculture, 1905, pp. 483-494. 



ScHRENK, Hermann von: The Bluing and Red Rot of the Western Yellow- 

 Pine with special reference to the Black Hills Forest Reserve. Bui. No. 36, 

 U. S. Bureau of Plant Industry, 1903. 



