318 



INDEX. 



Canal boats, propulsion of, 277. 



Capacity, measures of, 59. 



Capulus acutirostris, 31. 



Carboniferous limestones, fossils of, 



Indiana, fossils from, carboniferous 

 limestones of, 1. 



Cardium scitulum, 40. 



Carpenter, G. W., upon theory of 

 surveying, 268. 

 paper by, on early laws of Alba- 

 ny, 269. 



Carpenter, P. P., election as corres- 

 ponding member, 275, 277. 

 microscopic shells exhibited by, 

 276. . 



upon photographing minute ob- 

 jects, 276. 

 Carroll Howard, elected a resident 

 member, 259. 

 paper by, on novel method of 



propelling canal boats, 277. 

 on difference of level of Atlantic 



and Pacific, 269. 

 death announced, 304, 305. 

 Castorland, colony of, 275. 

 Cathedral Cologne, noticed, 256. 

 Catskill group, remarks on, 307. 

 Centronella genus, observations upon, 

 125. 

 described, 134. 

 Charionella, genus described, 127. 

 Charting of stars, instruments for, 

 167, 305. 



Chemung group, identity with Cats- 

 kill, 307. 



Cheirocrinus, a new genus of crinoi- 

 dea, 288. 

 stigmatus, 225. 

 Clinton, DeWitt, portrait of, 286. 

 Cloths, list of premiums and speci- 

 mens, 113. 

 report on, 250, 282. 

 Coal measures, fossils of, 2. 

 Cochrane, Mrs., letter on burial place 



of Lord Howe, 269. 

 Coffee, paper on, 278. 

 Coins, committee on, 307. 



presented, 281. 

 Columns, hollow cast iron, defects of, 

 281. 



Comet, Donati's, Dr. Gould on, 262. 

 Comets, notices of, 294, 295. 

 Congress, memorial to on medal de- 

 partment in mint, 247, 248. 

 Conocardium, carinatum, 14. 



catastomum, 13. 



cuneatum, 14. 



equilaterale, 16. 



Meekanum, 15. 



Prattenanum, 15. 

 Conularia subulata, 32. 



Cooper, Dr. J. G., fossils collected 

 by, 74. 



Paul F. , election as resident mem- 

 ber, 259, 260. 

 Copper region of Lake Superior, 271. 

 Cosmology, review of Hickok's, 89, 



262. 



Crania siluriana, 208. 



setifera, 209. 

 Cretaceous rocks, Vancouver's Island, 

 37. 



Crustacea from Indiana, 227. 



from coal formations of west, 33. 

 Cryptonella genus, observations upon, 

 125. 



described, 132. 

 Currents, remarks on, 266, 267. 

 Cynthocrinus polyxo, 199. 



pusillus, 200. 

 Cyphaspis Christyi, 220. 

 Cypricardella, generic description, 17. 



nucleata, 17. 



oblonga, 18. 



plicata, 18. 



sub-elliptica, 17. 

 Cypricardia Indianensis, 18. 



subplana, 19. 

 Cythere carbonaria, 33. 

 Daguerreotype, early history of, 261. 

 Dalmania verrucosa, 218. 

 Dead Sea, paper by Dr. Townsend 

 on, 291. 



Dean, Prof., paper on Baconian phi- 

 losophy, 290. 



Deaths, registration of, 246. 



Decimal and dual systems of weights 

 and measures, 50. 



Dentalium nanaimoensis, 44. 



DeWitt, R. V., paper by, on steam, 

 251. 



exhibits model of a helix boiler, 

 253. 



Distribution of economical geological 



products, 263, 264. 

 Donati's comet, remarks on, 262. 

 Drift, remarks on, 287. 

 Dudley Observatory Library, 253. 



methods used at, 256, 257. 

 Dutch Church, Albany, plans of, 300, 

 302. 



Edmondia? Calhouni, 80. 



Edwards, James, election as resident 



member, 262, 263. 

 Electro magnetism, early experiments 



on, 245. 



Elliott, E. B., election as a corre- 

 sponding member, 285. 

 Esmunazar, sarcophagus of, 68. 

 Eucalyptocrinus coelatus, 226. 



crassus, 197. 

 Euomphalus, planispira, 20. 



