413 



INDEX. 



Carbonic acid condenser, 297. 



removed from wells, 206. 

 Cataract, capsular, removal of, 133. 

 Catlin, Mr. G., his journey to Coteau 



des Prairies, 138. 

 Catoptric examination of the eye, 187. 

 Cavities in chalk filled with gravel, 122. 

 Chain cable, corrosion of, 176. 

 Charcoal burning, deadly effects of, 134. 

 Chemistry, binary theory of bodies, 115. 



Law of substitutions, 114. 

 Chemistry and mineralogy, section B, 

 British Association, 114. 



Webster's Manual of reviewed 

 329. 

 Chinese writing, 398. 

 Circular of Brit. Association, 10th meet- 

 ing, 407. 

 Chromic iron ore analyzed, 243. 

 Classification of rocks, letter of R. I 



Murchison on, 408. 

 Ciliograda of British seas, 129. 

 Combe, G., lectures on phrenology, 390. 

 Comet, a new one seen by Encke, 378. 



tails, 35. 

 Conductors, electrical, effects of introdu 



cing substances between, 222. 

 Conrad, T. A.,on Caradoc sandstone, 87. 

 Ludlow Rocks, 89. 

 observations on plastic clay, 91. 

 new species of Gnathodon, 92. 

 on Silurian system, 86, 89. 

 Wenlock shale and limestone, 

 88. 

 Cotta, Hr. Dr., on footmarks in sand- 

 stone, 255. 

 Cotton of commerce, cultivation of, 131. 

 Coteau des Prairies, Catlin'sacc't of, 138. 

 Crania Americana reviewed, 341. 

 Crust of globe, minimum thickness of, 



106. 

 Crystals, models of, in mica, 187. 

 Cuba, chromic iron of, analyzed, 243. 

 Current, electrical, induced on itself, 212. 

 of third, fourth, and 

 fifth order, 226. 

 Currents, secondary, how produced, 215 

 at a distance, 219. 



D. 



Delphinula, new species, 193. 



Dewey, Prof. C, on aurora and sunsets 



146. 

 Dodder, common, 131. 

 Donation of books to American Philo 



sophical Society, Philadelphia, 156. 

 Du Ponceau on Chinese writing, 400. 

 Dyke of trap in Cumberland, 127. 



Earthquakes, severe, in Burmah, 385. 

 Earth's temperature in deep mines, 108. 

 at different depths 

 near Edinburgh, by Prof. Forbes, 108, 



Earthen ware made of millstone grit, 127. 



Eaton's Manual of Botany, 378. 



Eclipse, solar, of May 14 and 15, 1836, 

 191. 



of Sept. 18, 1838, 158, 

 163, 171, 174. 



Ehrenberg, M., discoveries in fossil infu- 

 sorial animalcules, 405. 



Electricity, experimental researches in, 

 by M. Faraday, 378. 



Electricity and magnetism, contributions 

 to, 170, 209. 



ordinary, induced currents pro- 

 duced from, 232. 



Electrical currents in metalliferous veins, 

 120. 



Electro-dynamic induction, 209. 



Elephant Shark, 197. 



Elm tree moth, parasite on its eggs, 385. 



Elvella esculenta, 194. 



Emerson, G. B., on Lycopodon gigante- 

 um, 391. 



Emys Blandingii, 195. 



Encke's letter to Prof Bache, 184. 



Europe, geological map .of, 126. 



Exchanges of shells and insects, 205. 



Exploring Expedition, U. S., progress of, 



I 387. 



Eye, catoptric examination of, 190. 



Faraday, M., a letter to him from Dr. 

 Hare, 1. 



Experimental researches in 

 electricity, 378. 

 Feet of animals, impressions of, 127. 

 Fermentation, experiments on, 120. 

 Fish fossil of Agassiz, last No. on, 121. 

 from Manchester, Eng., 125. 

 how studied in confinement, 132. 

 reptiles, and birds of Mass., 379. 

 reports on, examined by Mr. Binney, 

 393. 



fifteen species from Ohio named, 392. 

 two of Ray, 396. 

 Flora of England, additions to, 133. 



fossil, of Great Britain, 127. 

 Forbes on mica for polarizing light, 101. 

 Formulae relative to comets, 1^0. 



G. 



Galvanic battery used in blasting, 33. 

 Gems, practical remarks on, 61. 

 Geology and Geography in British Asso- 

 ciation report, 121. 

 Germany, rocks of, examined, 126. 

 Gibbs, J. W., on Gissi vocabulary, 41. 



on the Vai or Vey vocabulary, 43. 

 on the Mendi vocabulary, 45. 

 Gnathodon, new species of, 93. 

 Gould, A. A., new species of Delphinu- 

 la, 193. 



on thirteen species of shells, 196. 



