406 MISC. PUBLICATION 3 6 4, U. S. DEPT. OF AGRICULTURE 



DETECTION 



Andrews, L. R. (8068) 



forest-work by aeroplane. Brit. Columbia Forestry Conv. Papers Read 

 1921 : 12-19. 1921. 



Arnold, H. H. (8069) 



aerial protection for our national forests. Intercol. Forestry Club. Ann. 

 1 (1) : 13-16, illus. 1921. 



Boeing, W. E. (8070) 



finding fires with aeroplanes. Canad. Forestry Jour. 12 (12) : 870-872. 

 1916. 



Boyce, C. W. (8071) 



aerial forest fire patrol in Oregon and California. Jour. Forestry 19: 

 771-775. 1921. 



Clepper, H. E. (8072) 



PENNSYLVANIA'S FOREST OBSERVATION TOWER SYSTEM. Pa. Dept. Forests and 



Waters Bull. 39 : 71-78. 1929. 

 Coe, P. K. (8073) 



LIGHTER THAN ATE CRAFT AND THE TIMBER INDUSTRY. Timberman 21 (12) : 101- 



103. 1920. 



Coyle, Leonidas. (8074) 



use of airplanes in forestry. Jour. Forestry 27 : 832-835. 1929. 



Flint, H. R. (8075) 



FOREST-FIRE PATROL BY AIRPLANE GREATLY HELPS GROUND FORCE. U. S. Dept. 



Agr. Yearbook 1928 : 312-313. 1929. 



Fritz, Samuel. (8076) 



new forest fire lookout maps. Sibley Jour. Engin. 31: 150-153, illus. 

 1917. 



Graham, Stuart. (8077) 



flying scouts in forestry have come to stay. Canad. Forestry Jour. 16 

 (1) : 14-16. 1920. 



Harkin, J. B. (8078) 



practical utility of planes in forestry. Canad. Forestry Jour. 15 (12) : 

 511-515. 1919. 



Hodge, W. C, Jr. (8079) 



the lookout on mt. lassen. Amer. Forestry 20: 568-571, illus. 1914. 



Humiston, W. D. (8080) 



perfecting lookout methods. West. Forestry and Conserv. Assoc. Proc. 

 1916: 10-11. 1916. 



Hutchins, M. C. (8081) 



observation towers. Northeast. States Forest Fire Conf. Proc. 1920: 33-38. 

 1920. 



Hutchinson, W. I. (8082) 



the eyes of the forest. Amer. Forestry 28 : 461-468, illus. 1922. 



(8083) 



pony blimps for fighting forest fires. Amer. Forestry 27 : 618-619, illus. 

 1921. 

 Kauffman, Erle. (8084) 



flying foresters. Amer. Forests and Forest Life 36: 198-201, 230, illus. 

 1930. 



Kennedy, K. E. (8085) 



guarding forests by airplanes. Canad. Forestry Jour. 14 (2) : 1521-1524, 

 1583-1587, illus. 1918. 



Kerr, R. M. (8086) 



AIRPLANE PATROL HAS LIMITED USE IN FOREST FIRE PROTECTION IN NORTHEASTERN 



Minnesota. Amer. City 33 (6) : 658-659, illus. 1925. 

 Macfarlane, J. D. B. (8087) 



aerial patrol and radio. Canad. Forest and Outdoors 22 (12) : 674, 712, 

 714, illus. 1926. 



