No. 8.] BIBLIOGRAPHY OF CONNECTICUT GEOLOGY. IO3 



Salisbury — Lee, 185. 



Trumbull — Hobbs, 156. 

 Hornblende slate — Hitchcock, 138. 



See also Amphibolite. 

 Hotchkissville — Hobbs, 556. 

 Housatonic river, discharge — 282. 



faults — Hobbs, 152. 



height at Gaylordsville — 282. 



map — Crosby, 503 ; Hobbs, 549. 



profile — 282. 



proposed dams — Crosby, 20. 



readjusted stream — iKummel, 183. 



Still river, tributary — Hobbs, 157; Rice and Gregory, 243a. 

 Housatonic valley, geological structure — ^ Hobbs, 151. 



soil suitable for tobacco — Killebrew, 178. 

 Hovey, E. O., Oservations on some of the trap ridges of East Haven — 

 Hovey, 162. * 



Relatively acid dike in the Connecticut Triassic — Hovey, 163. 

 Hubbard, O. P., Great bowlder in Woodbridge — Hubbard, 164. 

 Hudson river age of Taconic schists — Dana, 47. 

 Hulbert, E. M., Copper mining in Connecticut ^- Hulbert, 165. 

 Humus acid, action on rocks and minerals — Julien, 175. 

 Hunt, T. S., Geognosy of Appalachian system — Hunt, 167, 168. 



Geology of Appalachians, and origin of crystalline rocks — Hunt, 

 168. 



Remarks on the stratification of rock masses — Hunt, 169. 



Review of progress of geology for 1882 — Hunt, 171. 



Some crystalline limestones of North America — Hunt, 166. 



Special report on trap dikes and Azoic rocks of southern Penn- 

 sylvania — -Hunt, 170. 

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

 Hydrocarbon in trap — Dana, 44; Russell, 250. 



Ice caves and frozen wells, as meteorological phenomena — Kimball, 



at Meriden and Northford — Silliman, 269. 



at Salisbury — Silliman, 270. 

 Ice dams, rivers of eastern Connecticut — Koons, i8r. 

 Iceberg theory of drift — 'Dana, 54; Dobson, 105; Perry, 231. 

 Ichnographs from sandstone of Connecticut valley — Deane, loi. 

 Ichnology of New England — Hitchcock, 146. 

 Igneous origin of some trap rock — ■ Silliman, 272. 

 Illustrations of surface geology — Hitchcock, 145. 

 Ilmenite, Trumbull — Hobbs, 156. 

 Indurated bitumen, discussion of origin and description — Dana, 44; 



Percival, 229; Russell, 250. 

 Intrusive and extrusive Triassic trap sheets — Davis, 98, 100; Rice and 



Gregory, 243a. 

 Iron, eastern New York and western New England — Eckel, 108. 



in mica slate — Hitchcock, 137. 



magnetic. New Haven — Dana, 69; Silliman, 262. 



production — 282. 

 Iron mines — Dana, 75; Hitchcock, 137, 138; Putnam, 235; Pynchon, 



238. 

 Iron ores, classification and distribution — Smock, 280. 



Norfolk — Dana, 69. 



