Il8 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [BuU. 



Fossil trees found at Bristol — Silliman, 277. 



Report of the intrusive traps of the New Red sandstone of Con- 

 necticut — Silliman, 276. 

 Silliman, B., Jr., and Whitney, J. D., Notice of the geological posi- 

 tion and character of copper mine at Bristol — Whitney and 

 Siliman, 297. 

 Simsbury, geology — Percival, 229 ; Rice and Gregory, 243a. 

 Skeletons, Salisbury — Lee, 185. 

 Slate, action of humus acid — Julien, 175. 



Salisbury — Lee, 185. 

 Slate formations — Hitchcock, 138. 

 Smith, A., On the water courses and the alluvial and rock formations of 



the Connecticut valley — Smith, 279. 

 Smock, J. C, Geological-geographical distribution of iron ores — 



Smock, 280. 

 Soapstone, Somers — Hitchcock, 138. 

 Soil, crystallines — Maclure, 197. 



distribution — Emmons, 115; Percival, 229. 



formation — Silliman, 268. 



glacial — Rice and Gregory, 243a. 



nature and fertility — Maclure, 197. 



tobacco — Killebrew, 178. 

 Soil survey, Connecticut valley — Dorsey, 106; Fippin, 116. 

 Somers, coal — Hitchcock, 136. 



geology — • Percival, 229 ; Rice and Gregory, 243a. 



porcelain clay — Hitchcock, 138. 



soapstone — Hitchcock, 138. 

 South Britain, fossil wood • — Knowlton, 180. \ 



map — Hobbs, 552, 557. 

 South Glastonbury, map — Davis, 526. 

 South Hadley, foot-prints — Hitchcock, 146. 

 South Lyme, monazite and orthoclase — Matthew, 215. 

 South Manchester, map — Davis, 526. 

 Southbury, description of coniferae — Hitchcock, 142. 



geology — Hobbs, 155; Percival, 229; Rice and Gregory, 243a. 



indurated bitumen — Dana, 44. 



map — Hobbs, 556. 



petrified trees — Hitchcock, 137. 



rose quartz — Silliman, 263. 



Triassic — Davis, 83, 98; Hobbs, 155; Russell, 253. 

 Southern New England, during the melting of the great glacier — 

 Dana, 41. 



physical geography — Davis, 91, 96. 

 Southington, coal — Hitchcock, 136; Silliman, 263. 



fossils — Loper, 189. 



geology — Percival, 229 ; Rice and Gregory, 243a. 



water cement — Lowrey, 191. 

 Sphene, Trumbull — Hobbs, 156. 

 Spodumene, production — 282. 



Spontaneous movements of rocks — Johnston, 174; Niles, 225. 

 Springs — Gregory, 123, 124. 

 Stamford, geology — Percival, 229 ; Rice and Gregory, 243a. 



magnetic declination — Gannett, 121. 

 Staurolite crystals and Green mountain gneisses of Silurian age — Dana, 



40. 

 Steel, production — 282. 



Salisbury — Lee, 185. 



