err 
1914] Longevity of Insects 353 
44, . On the Normal Rate of Growth of an Individual and its Bio- 
chemical Significance. Arch. Ent.-mech. Org., vol. 25, page 581. 
45. Rulot, H. Note sur l’hibernation des Chauves-souris. Arch. de Biol. 1901. 
46. Sanderson, E. D. Some Observations on the Mexican Cotton Boll Weevil. 
U.S. D. A. Bur. Ent., Bul. 52, 1904. 
47. —————. The Relation of Temperature to the Hibernation of Insects. 
Jr. Econ. Ent., Vol. 1, page 56, 1908. 
48. —————. The Relation of Temperature to Growth of Insects. Jr. Econ. 
Ent., vol. 3, 1910, page 111. 
49, ———.. The Influence of Minimum Temperature in Limiting the Northern 
Distribution of Insects. Jr. Econ. Ent., vol. 1, page 245. 
50. Schultz, E. Ueber Hungerscheinungen bei Planaria. Arch. Ent.-mech. 
Org., vol. 18, page 555. 
51. Sharp, D. Insecta. Camb. Nat. His. 
52. Simpson, C.B. The Codling Moth, U.S. D.A., Div. Ent., Bul. 41, 1903. 
53. Tower, W.L. Evolutionin Chrysomelid Beetles. Carnegie Inst., No. 48, 1906. 
54. Vines, S. H. Physiology of Plants. Camb. 1886. 
55. Weisman, A. Essays on Heredity. 1889. 
56. Wright. Butterflies of the West Coast, San Francisco, 1905. 
