88 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Barytes, production, 282. 



sulphate of, Kensington — Percival, 228. 

 Basalt, altered, Saltonstall and South Durham — Hawes, 130. 



olivine. Pine Hill and South Durham — Hobbs, 155. 



tachylite, Meriden — Emerson, in. 



Wintergreen lake — Hawes, 128. 

 Basic dike in the Triassic — Griswold, 125. 

 Becket gneiss — Rice and Gregory, 243a. 

 Beckley station, map — Davis, 518. 



Triassic formation — Davis, 82; Rice and Gregory, 243a. 

 Bed of the Connecticut river — Hitchcock, 140. 

 Belodont reptile — Marsh, 207. 



Benjamin, H. W., Scenes around Granby — Benjamin, 5. 

 Berkshire schist — Rice and Gregory, 243a. 

 Berlin, clays — Loughlin, 190. 



clay-working — Ries, 245. 



coal — Hitchcock, 136. 



fossils — Loper, 189. 



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



map — Loughlin, 568; Percival, 577. 



mines — Percival, 228. 



sulphate of barytes — Percival, 228. 

 Bernardston loam — Fippin, 116. 

 Beryl, Haddam — Silliman, 263; Bowman, 8. 



Salisbury — Lee, 185. 

 Beseck lake, dike at outlet — Griswold, 125. 

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

 Bethel, map — Hobbs, 560. 



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

 Bibliography, concretions — Sheldon, 256. 



minerals — Brace, 9. 



Triassic — Russell, 253. 

 Biography — Dana, J. D., 76. 



Hitchcock, E., 148. 



Marsh, O. C., 208. 



Mather, W. W., 214. 



Percival, J. G., 230. 



Shepard, C. U., 259. 



Silliman, B, 274. 

 Birds, foot-marks — Hitchcock, 139. 

 Bismuth, production, 282. 

 Bitumen, in trap — Dana, 44; Percival, 229; Shepard, 258. 



production, 282. 

 Black Rock, magnetic declination — Gannett. 121. 

 Blake, W. P., Geological map of the United States — Blake, 500. 



Glacial phenomena of Mill Rock (abstract) — Blake, 7. 



Review of Marcou's geological map of the United States — 

 Blake, 6. 

 Bloomfield, fossils — Loper. 189. 



geology — ^ Percival, 229: Rice and Gregory, 243a. 

 Bluff Head, fossils — Loper, 189. 



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

 Bolton schist — Rice and Gregory, 243a. 

 Bowlders, between Guilford and Leete Island — Wells. 294. 



glacial — Rice and Gregon,', 243a ; Wells, 293. 



map — Hitchcock, 5j6. 



Montville — Wells, 294. 



