LIST OF CONTRIBUTORS. 75 



Hunt, J. Gibbons. Continued. 



On Saxafraga sarmentosa. I* 70, Biol. 3 



Ob Grimaldia barbifrons, P 70, Biol. 4 



■ Report in regard foo dust-shower. P 70, Biol. 10 



On the structure of Schizaia. P 74, 9 



On glands of Nepenthes. P 74, 145 



Crystallization in plants. P 74, 158 



Report on wheat and chess. P 74, 163 



Sensitive organs in Stapelia. P 78, 292 



Hunt, T. S. On chloride of calcium and magnesia precipitated 



by carbonate of soda. P '60, 96 

 Hunt, William. Leidy memorial address. P '91, 409 

 Hyatt, Alpheus. On a new species of sponge. P 78, 163 

 Ishikawa, Chiyomatsu. Description of a new species of squaloid 



shark from Japan. P '08, 71 

 Ives, J. E. On two new species of star fishes. P '88, 421 



Linguatula diesingii from the sooty mangabey. P '89, 31 



Variation in Ophiura panamensis and Ophiura teres. P 



'89, 76 



On a new genus and two new species of ophiurans. P '89, 143 



■ Catalogue of the Asteroidea and Ophiuroidea in the collec- 

 tion of the Academy of Natural Sciences of Philadelphia. P 

 '89, 169 



Mimicry of the environment in Pterophryne histrio. P '89, 



344 



On Arenicola eristata and its allies. P '90, 73 



Echinoderms from the northern coast of Yucatan and the 



harbor of Vera Cruz. P '90, 317 



Crustacea from the northern coast of Yucatan, the harbor 



of Vera Cruz, the west coast of Florida and the Bermuda 

 Islands. P '91, 176 



— — Echinoderms and arthropods from Japan. P '91, 210 

 ■ Echinoderms from the Bahama Islands. P '91, 337 



Reptiles and batrachians from northern Yucatan and Mexico. 



P '91, 458 



— Echinoderms and crustaceans collected by the West Green- 

 land Expedition of 1891. P '91, 479 



A new species of Pycnogonum from California, P '92, 142 



James, Edwin. Geological sketches of the Mississippi valley. 



J ii, 326 

 Remarks on the limestones of the Mississippi lead mines. 



J v, 376 



