74 i 



THE AMERICAN NATURALIST [Vol. XLIII 



brates; by drouth and winter, and by the sewer systems 

 of towns. 



1876. American Encyclopedia, Vol. XV, pp. 777-9. 



1899. Allen, G. M. Notes on the Keptiles and Batrachians of Intervale, 

 New Hampshire. Froc. Bost. Soc. Nat. Hist., Vol. XXIX, pp. 

 63-75. 



1865. Allen, J. A. Catalogue of the Reptiles and Batrachians of Massa- 

 chusetts. Froc. Bost. Soc. Nat. Hist., Vol. XII. 



1895. Assheton, R. Notes on the Ciliation of Ectoderm of Amphibian 



Embryo. Vol. XXXVIII, p. 465. 

 1892. Beddard, P. E. Animal Coloration. London, p. 159. 

 1894. Bos, J. R. Amphibia, Agriculture, Zoology, pp. 79-81. 



1897. Boulenger, G. A. The Tailless Batrachians of Europe, Vol. I, pp. 



23-67 ; Vol. II, pp. 221 ff . 

 1892. Boulenger, G. A. Poisonous Secretions of Batrachians. Nat. Sci., 

 Vol. I, pp. 185-190. 



1896. Brimley, C. S. Batrachians found at Ealeigh, North Carolina. 



Amer. Nat., Vol. XXX, p. 500. 

 1886. Brocchii, P. Crapud. Traite de Zoologie Agricole, pp. 240-242. 

 1833. Buckland, W. On the Vitality of Toads Enclosed in Stone and 



Wood. Amer. Jour. Sci,, Vol. XXIII, pp. 272-277. 

 1901. Conradi, A. F. Toads Killed by Squash Bugs. Science, Vol. XIV, 



p. 816. 



1884. Cope, E. D. Batrachians of the Permian Period of North America. 



Amer. Nat., Vol. XVIII, pp. 26-29. 

 1896. Cope, E. D. The Geographical Distribution of Batrachians and 



Eeptiles in North America. Amer. Nat., XXX, pp. 886-902 and 



1003-1026. 



1889. Cope, E. D. Batrachians of North America. Bull. U. S. Nat. Mus., 



No. XXXIV, pp. 277-281. 

 1907. Courtis, D. A. Response of Toads to Sound Stimuli. Amer. Nat., 



Vol. XLI, pp. 677-682. 

 1886. de Fischer, J. Role des Amphibians en Agriculture. 

 1906. Dickerson, M. C. Bufo lentiginosus americanus. The Frog Book, 



pp. 63-88. 



1905. Ditmars, R. L. Batrachians of the Vicinity of New York City. 



1898. Gage, S. H. The Life Hist„ry of ilio Toad. College of Agriculture, 



Cornell University. 



mon Toad (B. I. americanus). Proc. Amer. Ass. Adv. Sci., 

 XLVII, pp. 374-375. 



1901. Garman, H. The Food of the Toad. Ky. Agri. Exper. Station Bull., 



No. 91, pp. 62-68. 



1902. Garman, H. Synopsis of the Reptiles and Amphibians of Illinois. 



Bull. 111. State Lab. Nat. Hist., HI, pp. 335-339. 



1906. Hartman, F. A. Food Habits of Kansas Lizards and Batrachians. 



Tr. Kansas Acad. Sci., XX, pt. 2. 



