Orchestia rectimanus, D., 203. scutigerula, D., 203. serrulata, D., 204. spinipalma, D., 203. sylvicola, D., 202. tenuis, D., 202. Orchestidæ, fam., 201. Orcula punctata, Agassiz, 269. Ostracoda, 49. Oxide of lead, solubility of, 93. P. Panama, latitude of, 161. Pandarina, Dana, 54, 58. Pandarus, gen., Leach, 59. brevicaudus, D., 59. concinnus, D., 59. Satyrus, D., 59. PARSONS, USHER. On a tornado near Providence, R. I., 101. port on the results of the United States Coast Survey, 124. On comets, 147, 235. On a new method of computing the constants of the perturbative function of planetary motion, 197. On the turbine wheel, 240. On the law of vegetable growth and the periods of the planets, 241. On the masses of the planets, 250. On the vis viva, 256. Theory of rolling friction, 256, 258. A case in the theory of probabilities, 282. Classification of the Fellows of the Academy, 285. Report on the Memoir of Lieutenant Davis on the deterioration of Boston Harbor, 288. On the Middlesex tornado, 289. On the surface of least extent, 298. On Foucault's experiment, 310. PEIRSON, A. L. On explosion of burning-fluid, 311. Pendulum experiment, 265, 268, 310. Penilia, gen., Dana, 47. Petersen's second comet, 140, 147. Phonetics, essentials of, review of, 165. PICKERING, CHARLES. 164, 225. Table of the Egyptian computation of time, Planetary motion, perturbative function of, 241. Planets, masses of, 250. Planets, periods of, 241. Planets, rings of, 264. Plantæ Fendlerianæ Novi-Mexicanæ, 5. Plants of New Mexico, 6. Platygonus compressus, Le Conte, 1. Polyphemidæ, fam., 47, 49. Polyphemus, gen., 49. brevicaudis, D., 49. Pontella, gen., 10, 26. acuta, Dana, 30. acutifrons, D., 30. agilis, D., 30. argentea, D., 33. brachiata, D., 27. contracta, D., 28. crispata, D., 29. curta, D., 28. detonsa, D., 33. detruncata, D., 29. elliptica, D., 27. emerita, D., 31. exigua, D., 30. fera, D., 34. frivola, D., 33. hebes, D., 32. media, D., 29. perspicax, D., 32. plumata, D., 27. princeps, D., 34. protensa, D., 32. regalis, D., 31. rubescens, D., 31. Pontella simplex, D., 29. speciosa, D., 34. strenua, D., 32. turgida, D., 28. Pyctilus, gen., 218. R. Rain, at a very low temperature, 262. REPORT On the offer of the Boston Athenæum, 301. On the classification of the Fellows and Members of the Academy, 285. On coast marks, 221. On United States Coast Survey, 124. On Lieutenant Davis's paper, 288. On Professor Eustis's plan of the Middlesex tornado, 301. On meteorological observations, 231. Of Rumford Committee on a communication of Mr. Frost, 129. On the Statutes, 163. Sapphirina ovalis, D., 42. ovata, D., 42. ovato-lanceolata, D., 44. splendens, D., 42. tenella, D., 45. versicolor, D., 45. Saturn, eighth satellite of, 4, 5, 139, 147. Saturn, rings of, 264, 265. Saturn, Satellites of, 304. Saturn, theory of, 255. SCHUMACHER, PROFESSOR, position of, 146. Death of, 255, 262, 266. Scribella, gen., Dana, 10, 19. abbreviata, D., 20. scriba, D., 20. setiger, D., 20. Segments of Crustacea, table of, 55. Service-Pipes, metallic, 95. SHAW, LEMUEL. On the explosion of burning-fluids, 317: and the importance of alcohol, 319. Sida, gen., 48. angusta, D., 48. Sigillaria, 263. Siluridæ, 238. Strychnine, phenomena of death from, 181. Surface of least extent, 298. Symmetry, animal, foundation of, 323. Synapta coriacea, Agassiz, 269. System, decimal, of weights and measures, 244. T. Talitronus, gen., Dana, 202. insculptus, D., 202. Talitrus, gen., Latreille, 201. gracilis, D., 201. Novi-Zealandia, D., 201. ornatus, D., 201. Teeth, accumulations on, 183. Telegraph, electric, recording of, 284. Telegraph, fire, 299. Tellurium, 2. Tethys, 304. Theory of internal fire in heavenly bodies, 272. Thermometrical scale, 237, 243. Tiaropsis diademata, 149. Tidal currents, 100. Titanium, nitruret of, 253. Tornado in Middlesex County, theory of, 269, 284, 285, 289, 298, 301. Tornado, near Providence, R. I., 101, 291. TREADWELL, PROFESSOR. Report of committee on meteorological observations, 231. |