446 



Preservation of animal tissues by arse- 

 nic, 5. 



Preservation of food in air-tight vessels, 

 33. 



President, letter from, 45; account of 

 his visit to South America, 137. 



Puffinus obscnrus, Notes on, 132; meas- 

 urements of, 133; dissection, 134. 



Pygorhyncus, living, found at Acapulco, 

 '262. 



Pyrophyllite from Georgia, 22, 24. 



Pyrula canaliculata, 79. 



QuERQUEDULA discors, 122. 

 Quiscalus major, 9. 



Rallus crepitans, 122. 



Rangia. Svnonvmv of species of, by 

 Temple Prime, 347. 



Rattlesnake, dissection of poison appa- 

 ratus of, by Prof. J. Wyraan, 293; 

 differing from published descriptions, 

 294; Rattlesnakes living with other 

 animals, 294. 



Reduvius, 24; Coloring matter of, 29. 



Reports, annual, of Curators of Ichthy- 

 ology and Comparative Anatomy, 

 Treasui-er and Librarian for 1859-60, 

 abstracts of, 280; of Entomology, 

 Crustacea, Botany, &c., 281. 



Resignation of A. E. Agassiz as Curator 

 of Entomology, 32 ; of Dr. D. H. Stor- 

 er. Dr. S. Durkee, and Dr. J. X. Bor- 

 land, of their respective offices, 279 ; 

 and T. J. Whittemore, 281: vote of 

 thanks to, 283; of Dr. H. R. Storer 

 as Curator of Crustacea, 23. 



Reversed bivalves. Prof. Agassiz on, 

 166. 



Rhubarb, garden, Analvsis of juice of 

 leal-stalks of, by C. T. Jackson, 305. 



Rhus succedaneum grown at Washing- 

 ton, 149; experiments with, by Mr. 

 Edward S. Rand, 155; wax from, 54; 

 Prof. W. B. Rogers's examination of, 

 58. _ ^ 



Rhynconella lucida^ Gould, 323. 



Riiiiula echinata, Gould, 163. 



Ringicula arrta^ri, Gould, 325. 



'■ dentictdata, Gould, 325. 



doUnvis, Gould, 325. 



K\?'^o'm?i flexunsa, Gould, 400. 



. imbricata, Gould, 400. 



lyraia, Gould, 401. 



modesia, Gould, 401. 



nitidula, Gould, 400. 



plicatida, Gould, 401. 



striyillfita, Gould, 401. 



tornatilis, Gould, 401. 



irodilearis, Gould, 400. 



Rocks, composition of, changed by sea- 

 water, 46. 



Rocks, Lower Carboniferous, of Nova 

 Scotia and New Brunswick compared 

 with corresponding rocks of Appa- 

 lachian chain, by Prof. W. B. Rogers, 

 170. 



Rocky Mountain coal, 68 ; ditto silver, 

 copper, and magnetic iron ores, 69; 

 ditto turquoise, garnets, chrysolites, 

 and diamonds, 70. 



Rocky Mountain gold and Australian, 

 comparative value of, 68. 



Rocky Mountains, gold field of, 64. 



Roxbury conglomerate, supposed by 

 Mr. Jules Marcou to belong to New 

 Red Sandstone period, 183. 



Rutile, crystals of, from Georgia, 22. 



Sandstone containing impressions of 

 apparently ornithic bones, 396. 



Sandstone, " Connecticut River, foot- 

 marks of, Mr. Roswell Field on, 316. 



Sandstone, fossiliferous, from Dennis 

 River, Me., 227. 



Sandstones, American, Prof. Agassiz on 

 the age of, 356. 



Sandstones, North American, Dr. C. T. 

 Jackson on, 396. 



Sandstones of N. Brunswick, Prof. 

 Agassiz's opinion that thej' are Trias- 

 sic, 398; Prof. W. B. Rogers's opinion 

 of, 398. 



Sandwich Islands, specimens represent- 

 ing Fauna of, 236, 275. 



Saskatcliawan River. (See Winnipeg 

 Lake.) 



Saurothera vetula, 106. 



Sciurus eborivonts, Du Chaillu, 363. 

 viinutus^ Du Chaillu, 366. 



-- Nordhoffi, Du Chaillu, 363. 



— rubripes, Du Chaillu, 366. 



— subalhidus, Du Cliaillu, 365. 

 IVUsoni, Du Chaillu, 364. 



~ villica, Gould, 401. 



Rock, Gannet, Uria Briinnichii, and U. 

 ringvia breeding on, 349. 



Scolopax Drummondii not S. Wilsonii, 

 33. 



Screech-owl, color of young, 21. 



Scutelliua scobinata, Gould, 162. 



tinguijbrmis, Gould, 162. 



Sea-water, action of in changing com- 

 position of rocks, 46. 



Segmentina lucidd, Gould, 41. 



usta, Gould, 41. 



Selandria (Hoplocampa) rubi, Harris, 

 235. 



Setophaga ruticilla, 111. 



Shells, bivalve, reversed. Prof. Agassiz 

 on, 166; descriptions of new species 

 collected by North Pacific exploring 

 expedition, bv Dr. A. A. Gould, 40, 

 138, 161, 323, 382, 400; imprints of, in 

 slate from Fall River, Mass., 389. 



