LIST OF REFERENCES 195 



69. Troupe, R. S. (1921). The silviculture of Indian trees. Oxford. 



Vol. 3, p. 982. 



70. Powell, W. (1925). Rodents : description, habits, and methods of 



destruction. Union of South Africa, Dept. of Public Health. 

 Bull. No. 321, p. 12. 



71. BuLSTRODE, H. T. (191 1). Report on human plague in East Suffolk. 



. . . Rept. of Local Govt. Board on Public Health, etc. New Series, 

 No. 52. Part I. London. 



72. NiEDiECK, P. (1909). Cruises in the Behring Sea. London, p. 36. 



73. Perkins, R. C. L., and Sw^zy, O. (1924). The introduction into 



Hawaii of insects that attack Lantana. Bull. Exptl. Stn. of Hawaiian 

 Sugar Planters' Assoc. Entomological Series, Bull. 16. 



74. Bailey, V. (1922). Beaver habits, beaver control, and possibilities in 



beaver farming. U.S. Dept. of Agric. Bull. 1078. 



75. Elliott, H. W. (1884). Report on the seal islands of Alaska. Wash- 



ington. 



76. Saunders, J. T. (1924). The effect of the hydrogen-ion concentration 



on the behaviour and occurrence of Spirostomum. Proc. Cambridge 

 Phil. Soc. Biol. Sci., Vol. i, p. 189. 



77. Vallentin, R., and Boyson, V. F. (1924). The Falkland Islands. 



Oxford. 77a : p. 336. 77b : p. 309. 



78. MacFarlane, R. (1905). Notes on mammals collected and observed 



in the Northern Mackenzie River district. . . , Proc. U.S. Nat. 

 Mus., Vol. 28, p. 743. 



79. MiALL, L. C. (1897). Thirty years of teaching. London, p. 105. 



80. Brooks, A. (1926). Past and present big game conditions in British 



Columbia and the predatory mammal question. Journ. Mam- 

 malogy, Vol. 7, P- 37. 



81. Fleming, G. (1871). Animal plagues. London. 81a : Vol. i, 



pp. 66, 96, 117, 119, 140, 228, 26^. 81b: Vol. 2, p. 188. 81c: 

 Vol. 2, p. 268. Sid : Vol. I, p. ii6~; Vol. 2, p. 180. 81e : Vol. 2, 

 p. 243. 



82. Wii-SON, O. T. (1925). Some experimental observations of marine 



algal succession. Ecology, Vol. 6, p. 302. 



83. Hofman, J. V. (1920). The establishment of a Douglas Fir Forest. 



Ecology, Vol. I, p. I. 



84. Cooper, W. S. (1922). The ecological life-history of certain species 



of Ribes and its application to the control of the White Pine Blister 

 Rust. Ecology, Vol. 3, p. 7. 



85. Chapman, A. (1921). Savage Sudan. London. 85a : p. 42. 



85b: p. 176. 85c; p. 284. 85d : p. 245. 85e : appendix. 85f : p. 190. 



86. Roosevelt, T. (1914). Through the Brazilian wilderness. London. 



86a : pp. 16-18. 86b : p. 94. 86c ; p. 88. 



87. Donaldson, H. H. (1924). The rat. Philadelphia, pp. 8, 9. 



88. Schweitzer, A. (1923)- On the edge of the primeval forest. London. 



p. 143. 



89. Wenyon, C. M. (1926). Protozoology. London. Vol. i. 89a: 



p. 385. 89b : p. 348. 89c : p. 358. 



90. Pearl, R., and Parker, S. L. (1923). American Journ. Hygiene, 



Vol. 3, p. 94- 



91. Robertson, T. B. Experimental stuides on cellular multiplication : 



I. The multiplication of isolated infusoria. Biochemical Journ. 

 Vol. 25, p. 612. 



92. BiRGE, E. A., and Juday, C. (1922). The inland lakes of Wisconsin. 



Wisconsin Geol. and Nat. Hist. Survey, Bull. No. 64. Scient. Ser. 

 No. 13, p. 4. 



