2Q2 ECONOMIC ZOOLOGY 



164. Lantz, D. E. Directions for Destroying Pocket Gophers. Circular 52, U. S. 

 Biol. Survey, 1908. 



165. Ibid. Pocket Gophers as Enemies of Trees. Yearbook, U. S. Dept. Agr., 

 1909. 



166. Ibid. The Brown Rat in the U. S. Bull. 33, U. S. Biol. Survey, 1909. 



167. Ibid. Field Mice as Farm and Orchard Pests. Farmers' Bull. 670, U. S. 

 Dept. Agr., 1915. 



168. Ibid. How to Destroy Rats. Farmers' Bull. 369, U. S. Dept. Agr., 1916. 



169. Ibid. Destroying Rodent Pests on the Farm. Yearbook, U. S. Dept. Agr., 

 1916. 



170. Ibid. House Rats & Mice. Farmers' Bull. 896, U. S. Dept. Agr., 1917. 



171. Ibid. Raising Deer & Other Large Game Animals in the U. S. Bull. 36, U. 

 S. Biol. Survey, 1910. 



172. Ibid. Economic Value of N. A. Skunks. Farmers' Bull. 587, U. S. Dept., 

 Agr., 1914. 



173. Ibid. Raising Guinea Pigs. Ibid., No. 525, 1913. 



174. Ibid. Cottontail Rabbits in Relation to Trees & Farm Crops. Ibid., 702, 1916. 



175. Ibid. The Muskrat as a Fur Bearer, with Notes on Its Use as Food. Ibid., 

 No. 869, 1917. 



176. Ibid. Laws Relating to Fur-Bearing Animals. Ibid., No. 911, 1917. 



177. Lembkey, W. I. The Fur-Seal Fisheries in Alaska in 1910. Bureau of Fish- 

 eries Document, 749, 1911. 



178. MarshaU, F. H. Heller, L. L., & McWhorter, F. H. Karakul Sheep. Yearbook 

 of the U. S. Dept. Agr., 1915. 



179. Merriam, C. H. The California Ground Squirrel. Circular 76, U. S. Biol. 

 Surv., 1910. 



180. Nelson, E. W. The Rat Pest. Nat. Geographic Mag., July, 1917. 



181. Osgood, W. H. The Game Resources of Alaska. Yearbook U. S. Dept. Agr., 

 1907. 



182. Parker, G. H. The Fur-Seals of the Pribilof Islands. Scientific Month., 

 May, 1917. 



183. Rabot, C. Whale Fisheries of the World. Smithsonian Report for 1913. 



184. Scheffer, T. H. The Common Moles of the Eastern United States. Farmers' 

 Bull. 583, U. S. Dept. Agr., 1917. 



185. Stevenson, C. H. Whalebone and its Production. Doc. 626, U. S. Fish Com. 

 1907. 



1 86. Surface, H. A. Zoological Conservation. Zool. Bull. Penna. Dept. Agr. 

 Nov., 1911. 



187. True, F. W. The Whalebone Whales of the Western North Atlantic. Smith- 

 sonian Contributions to Knowledge, No. 1414, 1904. 



