INDEX. 337 



Argyroxiphium, gen., 159. 



macrocephalum, Gray, 160. 

 Asteroids, model of, 305. 

 Astrangia Danse, 162. 

 Astridium, gen., Dana, 61. 



orientale, D., 61. 

 Atheneeum, Boston, room in, for the Academy, 301. 

 Aurora, connection of, with atmospheric electricity, 283. ' 

 Aztec children, 245. 



B. 



Barometer, Aneroid, 186. 



Barometrical scales, 237, 243. 



Bond, G. P. On Saturn's rings, 264. On two of the inner satellites 

 of Saturn, 304, 



Bond, W. C. On Mauvais's comet, 1. On an eighth satellite of Sat- 

 urn, 4, 139. On the satellite of Neptune, 136. On Encke's 

 comet, 138. On Petersen's second comet, 140. Moon culmina- 

 tions observed at Cambridge, 141. Double stars observed at Cam- 

 bridge, 144. 



Bone corpuscles, 257. 



Bonito, on the scales of, 238. 



Bosminidae, fam., 47. 



Boston Harbor, deterioration of, 261, 288. 



Boundary between United States and Canada, 105. 



BowDiTCH, H. I. On the animals and vegetable products found in the 

 accumulations on the teeth, 183. 



Bryology of the United States, 148. 



Burnett, Waldo J. On Spermatozoa, 238. 



Burning-fluid, explosions of, 178, 311,332. 



Bust of Hon. John Pickering, 158. 



C. 



Cactese, new, 8. 



•Calanidse, fam., 9. 



Calanus, gen.. Leach, 10, 124. 



qffinis, D., 15. 



amoenus, D., 17. 

 VOL. II. 43 



