436 



QuiscALUs versicolor, 118. 



Raia batis, Electric apparatus of, 44. 



BcmdalUa, iiov. gen., Stimpson, 85. 



ornatn, " 85. 



Kats, Albino, from Medford, Mass., 301. 



Rattlesnake, Experiment with, 56. 



Redfield, William C, Notice of, by W. 

 B. Rogers, 186. 



Red Snow, 302. 



Report on Dr. 1. I. Hayes's proposed 

 Arctic Expedition, 416; North Pacific 

 Expedition, 91. 



Reproduction of Arachnides, 285. 



Reptiles, Series among, 114; collected 

 in California, by E. Samuels, List of, 

 192. 



Resolutions on Deposit of Bimiey Libra- 

 ry, 65. 



Respiration, Brown-S^quard on, 67; 

 brancliial, pulmonary, and cutaneous, 

 their relative value in Menobranchus. 

 429. 



Ridgeway Limestone, Analysis of, 18; 

 Carbonate of iron. Analysis of, 18; 

 Coal, Analysis of, 17. 



Robin, American, Feeding and growth 

 of, 396; food of. Discussion on, 399. 



Rock Guano from an island in the At- 

 lantic Ocean, 157. 



Saint Simon's Isle, Peculiarities of 



Helix thyroidus in, 129. 

 Saline ma"tters in waters of Eastern 



Jlassaciiusetts, Origin of, 30. 

 Salmo hamatus, found in ISIassacliu- 



setts, 418, 431. 

 Salmonidse, Prof. Agassiz on, 418. 

 Samuels, E., Collections in California, 



38. 

 Sand-Eel in abdominal cavity of Cod, 



176. 

 Sand-Sharks from Nantucket, 259. 

 Sands of California and Australia, 228. 

 Sandstone of Connecticut River, Bird 



tracks in. 111. 

 Sandstones, Composition of, 168. 

 Sarcoptes hominis, 290. 

 Saxicola, Eui'opean, breeding in Labra- 

 dor, 420. 

 Scale of Striped Bass, (Labrax lineatus,) 



Section of, 362. 

 Scales of Wegalops, Structure of, 363. 

 Sciurus striatus. Albino, Specimen of 



218. 

 Sclero.stomura dentatura found near the 



kidney in a hog, 428. 

 Scolecophagus Mexicanus, Egg of, 148. 

 Scopelus, New species of, 71. 

 Sea-water, Effect of, on organic life of 



Hayti, 257. 

 Sepedonium cervinum, 292. 

 Series in the Animal Kingdom, 112; 



among Herbivora, 113; JIanimalia, 

 113; Reptiles, 114. 



Sesquioxide of Chromium, New reaction 

 of, under galvanism, 209. 



Setophaga ruticella, 116. 



Shaw, Dr. B. S., Resignation of, as Re- 

 cording Secretary, 379; Vote of thanks 

 to, 379. 



Shell of Limulus, Mode of casting off; 

 22. 



Shells, Freshwater, Erosions of, by Dr. 

 James Lewis, 149; Shells, new species 

 of, collected by N. Pacific Exploring 

 Expedition, 422; New species of, 11; 

 of freshwater Clams, Cai;se of cor- 

 rosion of, 57, 258; of .Japan, &c., 124; 

 of North Pacific and Atlantic identi- 

 cal, 124. 



Silicification of Organisms, A. A. Haves 

 on, 168. 



Skate, (Raia batis,) Electric apparatus 

 of, 44; Egg-case of, Observations on 

 its formation, by Prof. J. Wyman, 

 S376; Claspcrs of, their use, 377. 



Skin, Tattooed, 91; Skin, human, Lai-va 

 of Musca in, 281. 



Skunk, Stryclinine detected in, 342. 



Slate Rocks of Governor's Island, Bos- 

 ton harbor, peculiar condition of, 

 Prof. W. B. Rogers on, 217; Horizontal 

 heave in, 217. 



Slate from Somerville, Mass., Analysis 

 of, 108. 



Smelt, (Osmerus viridescens) from 

 Squam Lake, N. H., 243 ; modified by 

 residence in fresh water, 243 ; in Ja- 

 maica Pond, Mass., 243. 



Society and Sandwich Islands, facts 

 bearing on qui>stion of common origin 

 of their inhabitants, 414. 



Society of Natural History, California, 

 154." 



Somateria mollissima, 119. 



Somerville, Mass., Analysis of Slate 

 from, 108. 



Sonorous action of jets of burning gas, 

 Prof. W. R. Rogers on, 333, 339, 346. 



Sorghum Halepense, 326 ; saccharatum, 

 326; vulgare, 326; saccharatum. Cane 

 Sugar from, 286, 293, 296, 337 ; Chem- 

 ical examination of, 342; Products of, 

 228; Sugar of. Dr. A. A. Hayes on, 

 200; vulgare. Botany of, C.J. Sprague 

 on, 321 ; Varieties of. Dr. C. Picker- 

 ing on, 326; Chemical change in Glu- 

 cose of, 297. 



South America, List of plants from, by 

 N. H. Bishop, 182. 



Sperm Whale, Structure of its eye, 

 125. 



Sphojroma ampUcauda, Stimpson. 89. 



Spongilla in Cochituate water, 267. 



Squam Lake, N. H., Leuciscus from, 



