INDEX. 



\ 11. 



passf d by it, asking for an increased 

 edition of the scientific reports of 

 the exploring expedition, 37 ; re- 

 marks in relation to a bill before 

 Congress on that subject, 79; ob- 

 servations on floating docks, 50 ; 

 remarks on drift, 109 ; on the cellu- 

 lose of the Borneo palm, 186 ; on 

 the dust of anthracite furnace flues, 

 191 ; on a new plan for representing 

 geological strata on paper, 218; 

 announcement of the deposit in the 

 Institution of Mr. H. Seybert's che- 

 mical apparatus and library of 

 chemical works, 224; on a peculiar 

 sediment from a steam boiler, 318; 

 on some fossil bones from Berks 

 Co., Pennsylvania, 318. 



Kenworthy, Dr., don. to mus., 31. 

 Kern, Benjamin H.,don. to mus., 255. 

 Kilvington, Robert, don. to mus., 



230, 246. 

 Kinberg, J. G. H., additions to mus. 



from, in exchange, 12. 

 Korthals, Dr. P. W., don. to lib., 236. 



Lambert, John, don. to lib., 304, 316 ; 

 election as Recording Secretary, 

 299. 



Le Conte, Dr. J. L., don. to mus., 269. 



Leeds Philosophical Society, don. to 

 lib., 49, 191. 



Leidy, Dr. Joseph, don. to mus., 

 148, 244 ; don. to lib., 225 ; on the 

 anatomy of Spectrum femoratum, 

 80 ; description of a new genus and 

 species of Entozoa, 100 ; on the 

 mechanism which closes the mem- 

 branous wings of the genus Lo- 

 custa, 104; on an Entozoon from the 

 thigh of a hog, 108; on the situation 

 of the olfactory sense in the terres- 

 trial tribe of the gasteropodous 

 mollusca, 136 ; instance of the great 

 fecundity of the Cryptogamia men- 

 tioned by, 195; discovery of crys- 

 tals in the cellular structure of 

 species of Parmelia, 210; on the 

 cranium of a New Hollander, 217 ; 

 on an Entozoon from the pericardium 

 of Helix alternata, 220 ; request to 

 change the name of an Entozoon de- 

 scribed by him, from Cryptobia to 

 Cryptoicus, 239 ; remarks on Squa- 

 tina Dumerili, 247 ; description and 

 anatomy of a subgenus of Planaria, 



248 ; description of two new species 

 of Planaria, 251, on the fossil horse 

 of America, 262; on the slow de- 

 structibility of animal tissues in cer- 

 tain states, 313; on a new genus and 

 species of fossil ruminants, Poe'bro- f 

 therium Wilsoni, 322; additional 

 observations on the fossil horse of 

 America, 328. 

 Letters from : 



Abert, Col. J. J., 228. 



Adams, Prof. C. B., 12, 49, 189, 



217. 

 Agassiz, M., 37. 

 Bache, Prof. A. D. t 10, 91. 

 Bailey, Prof., 39. 

 Baird, Prof. S. F., 209. 

 Baird, William M., 68. 

 Barratt, Dr. J. P., 194. 

 Breckenridge, Wm. D., 144. 

 Bromfield, Dr. Wm. A., 228. 

 Brown, Richard, 143, 229, 317. 

 Clot Bey, M. D., 32. 

 Cramer, Charles, 189. 

 Dawson, J. W., 220. 

 De Hauer, the Chevalier, 312. 

 De Jonnes, M., 71. 

 Delafield, Major, 98. 

 Everest, Col., 259. 

 Eyton, Thomas C, 192. 

 Falconer, Dr., (E. India. Co.,) 



308. 

 Fehlands, John, 312. 

 Gourlie, Wm., Jr., 78. 

 Graf, Mr., 149. 

 Gray, Dr. Asa, 92. 

 Haldeman, Prof., S. S., 278. 

 Harden, Dr. J. M. B., 106. 

 Hammond, Ogden, 197. 

 Hering, Dr. E., 242. 

 Hildreth, Dr. S. P., 274. 

 Huffnagle, Dr. Charles, 98. 

 Kinberg, J. G., 12. 

 Kippist, Richard, 211. 

 Lamarepicquot, M., 68. 

 Land, Capt. John, 212. 

 Locke, Prof., 30. 

 Logan, Wm. E., 231. 

 Lyell, Charles, 12, 92. 

 Maclure, Alexander, 79. 

 Meigs, H., 71. 

 Mitchell, Dr. J. K., 191. 

 Morris, Rev. J. G., 209. 

 Morris, Miss M., 238. 

 Norwood, Dr. J. G., 30. 

 Owen, Prof. Richard, 15. 

 Piddington, Henry, Jr., 16. 



