RANGE BIBLIOGRAPHY 171 



Scheffer, T. H. (3080) 



controlling mountain beavers. Wash. Agr. Expt. Sta. Monthly Bull. 



7 (8): 131. 1919. 



- (3081) 



AMERICAN MOLES AS AGRICULTURAL PESTS AND AS FUR PRODUCERS. U. S. 



Dept. Agr. Farmers' Bull. 1247, 23 pp., illus. 1922. 



. (3082) 



MOUNTAIN BEAVERS IN THE PACIFIC NORTHWEST; THEIR HABITS, ECONOMIC 



status, and control. U. S. Dept. Agr. Farmers' Bull. 1598, 18 pp., 

 illus. 1929. 



(3083) 



HABITS AND ECONOMIC STATUS OF THE POCKET GOPHERS. U. S. Dept. Agr. 



Tech. BuU. 224, 27 pp., illus. 1931. 

 Scholl, E. E. and Meill, J. W. (3084) 



THE DESTRUCTION OF NOXIOUS ANIMALS. THE CONTROL OF DESTRUCTIVE 



animals. Tex. Dept. Agr. Bull. 60, 19 pp. 1918. (Supersedes Bull, 

 (n. s.) [23].) 



Shaw, W. T. (3085) 



ground squirrel control. Wash. Agr. Expt. Sta. Pop. Bull. 99, 11 pp., 

 illus. 1916. 



. (3086) 



the Columbian ground squirrel. Calif. State Comn. Hort. Monthly 

 Bull. 7 (11-12): 710-720. 1918. 



— (3087) 



THE COST OF A SQUIRREL AND SQUIRREL CONTROL Wash. Agr. Expt. Sta. 



Pop. Bull. 118, 19 pp., illus. 1920. 

 — (3088) 



MOISTURE AND ALTITUDE AS FACTORS IN DETERMINING THE SEASONAL AC- 

 TIVITIES OF THE TOWNSEND GROUND SQUIRREL IN WASHINGTON. Ecology 



2: 189-192, illus. 1921. 



— (3089) 



Washington's annual losses from ground squirrels. Wash. State Col. 

 Ext. Bull. 69, 8 pp., illus. 1921. 



(3090) 



BREEDING AND DEVELOPMENT OF THE COLUMBIAN GROUND SQUIRREL. Jour. 



Mammal. 6: 106-113, illus. 1925. 

 — (3091) 



THE COLUMBIAN GROUND SQUIRREL AS A HANDLER OF EARTH. Sci. Monthly 



20: 483-490, illus. 1925. 



(3092) 



DURATION OF THE AESTIVATION AND HIBERNATION OF THE COLUMBIAN GROUND 

 SQUIRREL CITELLUS COLUMBIANUS AND SEX RELATION TO THE SAME. 



Ecology 6: 75-81, illus. 1925. 



(3093) 



the food of ground squirrels. Amer. Nat. 59: 250-264, illus. 1925. 



— (3094) 



the hibernation of the Columbian ground squirrel. Canad. Field- 

 Nat. 39: 56-61, 79-82, illus. 1925. 



- (3095) 



A LIFE HISTORY PROBLEM AND A MEANS FOR ITS SOLUTION. Jour. Mammal. 6: 



157-162, illus. 1925. 

 ■ ■ • (3096) 



the marmots of hannegan pass. Nat. Hist. 25: 169-177, illus. 1925. 



- (3097) 



OBSERVATIONS ON THE HIBERNATION OF GROUND SQUIRRELS. Jour. Agr. 



Research 31: 761-769, illus. 1925. 

 — (3098) 



THE SEASONAL DIFFERENCES OF NORTH AND SOUTH SLOPES IN CONTROLLING 

 THE ACTIVITIES OF THE COLUMBIAN GROUND SQUIRREL. Ecology 6: 



157-162, illus. 1925. 



