Bibliography 



Hay, W. p. 



1902. A List of Batrachians and Reptiles of the District of Columbia and 

 Vicinity. Vol. xv, pp. 121-145. 



1903. On Batrachia and Reptiles. Forest and Stream May 16, 1903, p. 

 425. 



Henshaw, S. 



1904. Fauna of New England. List of the Batrachia. Occasional Papers. 

 Bost. Soc. of Nat. Hist., vol. vii. 



Hertwig, Richard. 



1897. General Principles of ZoOlogy. Henry Holt & Co. 

 Hinckley, M. H. 



1882. On Some Differences in the Mouth Structure of Tadpoles of Anu- 

 rous Batrachians found in Milton, Massachusetts. Proc. Bost. Soc. Nat. 

 Hist., vol. xxi, pp. 307-314. 



1882. The Development of the Tree-toad. Amer. Nat., vol. xvi, p. 636- 

 640. 



1883. Abstract of Article on Mouth Structure of Tadpole. Amer. Nat., 

 vol. xvii, p. 670. 



1883 The Development of the Tree-toad. Proc. Bost. Soc. Nat. Hist., 

 vol. xxi, p. 104. 



1883. Notes on the Peeping Frog, Hyla pickeringii Le Conte. Memoirs 

 Bost. Soc. Nat. Hist., vol. iii, pp. 311-318. 



1884. Notes on the Development of Rana sylvatica Le Conte. Proc. 

 Bost. Soc. Nat. Hist., vol. xxii. 



HOLBROOK, J. E. 



1842. North American Herpetology. Philadelphia. 

 HORNADAY. 



1904. American Natural History. Scribners. 

 Howe, R. H. 



1899. North American Wood Frogs. Proc. Bost. Soc. Nat. Hist., vol. 

 xxviii, No. 14, pp. 369-374. 

 Huxley, T. H. 



1875. Article on Amphibia, Encycl. Britann. 9th Edition, pp. 750-771. 

 Jordan, D. S. 



1899. Manual of the Vertebrate Animals of the Northern United States. 

 Chicago. 

 Jordan, E. O., and Eycleshymer, A. 



1892. The Cleavage of the Amphibian Ovum. Anat. Anz., bd. vii. 

 1894. Journal of Morphology, vol. ix. 

 King, H. D. 



1902. The Gastrulation of the Egg of Bujo lentiginosus. Amer. Nat., 

 vol. xxxvi, pp. 527-548. 



1902. Experimental Studies on the Formation of the Embrj-o of Bufo 



lentiginosus. Bryn Mawr College Monographs, vol. i, No. 2, pp. 545-563- 



1904. The Formation of the Notochord in the Amphibia. Bryn Mawr 



Monographs. Contributions from the Biological Laboratory. Reprint Series, 



vol. i, No. 3. 



245 



