1896.] NATURAL SCIENCES OF PHILADELPHIA. 247 



116 — Ou the position of the yolk-blastopore as determined by the 

 size of vitellus. Araer. Nat., 1885, pp. 411-415. 



117 — Development of the spines of the anterior dorsal of Gaste- 

 rosteus and Lophius. Amer. Nat., 1885, p. 415. 



118 — On the probable origin, homologies and development of 

 the flukes of cetaceans and sirenians. Amer. Nat., 1885, pp. 515- 

 519. 



119 — On the formation of the embryonic axis of the teleostean 

 embryo by the concrescence of the rim of the blastoderm. 1 fig. in 

 text. Araer. Nat., 1885, pp. 614-615. 



120 — On the development of the mammary glands of cetacea. 

 Araer. Nat., 1885, pp. 616-618. 



121 — On the availability of erabryological characters in the clas- 

 sification of the Chordata. Amer. Nat., 1885, pp. 815-819 and 903 

 -907. 



122 — On the genesis of the extra terminal phalanges in the cet- 

 acea. Amer. Nat., 1885, pp. 1013-1015. 



123 — On the manner in which the cavity of the heart is formed 

 in certain teleosts. Amer. Nat,, 1885, pp. 1015-1017. 



124— The archistome theory. Amer. Nat., 1885, pp. 1115-1121. 



125 — The development and structure of Mierohydm Rijderl Potts. 

 Amer. Nat., 1885, pp. 1232-1236. 



126 — An exposition of the principles of a rational system of 

 oyster culture, together with an account of a new and practical 

 , method of obtaining oyster spat on a scale of commercial import- 

 ance. Rep. U. S. Coram. Fish and Fisheries for 1885, pp. 381-423, 

 3 plates. 



127 — On the development of the cetacea, together with a con- 

 sideration of the probable homologies of the flukes of cetaceans and 

 sirenians. Rep. Coram. Fish and Fisheries 1885, pp. 427-488, 3 

 plates. 



128 — On the development of osseous fishes, including marine 

 and freshwater forms. Rep. Corara. of Fish and Fisheries, 1885, pp. 

 489-604, 30 plates. 



129 — Note on the male organs of the eel. Bull. U. S. Fish 

 Coram,, V, 1885, 2 figs, in text, pp. 1-3. 



130 — Directions for collecting embiotocoid fish embryos. Bull. 

 U. S. Fish Coram., V, 1885, p. 32. 



131 — The rate of growth of oysters at St. Jerome Creek Station. 

 Bull. U. S. Fish Corara., V, 1885, pp. 129-131, 2 figs, in text. 



132 — On the developraent of the raaramary glands and genitalia 

 of the cetacea. Bull. U. S. Fish Corara., V, 1885, pp. 135-142, 2 

 figs in text. 



133 — On the rate of growth of the coraraon clam, and on a mode 

 of obtaining the young of the giant clams of the Pacific Coast for 

 the purpose of transplanting. Bull. U. S. Fish Coram., V, 1885, 

 pp. 174-176. 



