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



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



Tile, production — 282. 



Till ridge of New Haven — Dana, 58, 64; Davis, 8r. 



Titanium, Salisbury — Lee, 185. 



Tobacco soil — Dorsey, 106; Killebrew, 178. 



Tolland, garnet — Webster, 290. 



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

 graphite — Webster, 290. 

 Topaz, Lane's mine — Hitchcock, 137. 



Trumbull — Hobbs, 156. 

 Topographic atlas of Connecticut — 586, 587. 

 Topographic development of Triassic formation — Davis, 89. 

 Topographic forms, date of origin — Davis, 94. 

 Topographic Survey of Connecticut — Chapin, 16; Gregory, 124c. 

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



map — Hobbs, 559. 

 Totoket mountain, description — Hovey, 162. 

 map — Davis, 520, 531; Hovey, 565. 

 trap — -Davis, 98, 100; Rice and Gregory, 243a. 

 Tour between Hartford and Quebec in the autumn of 1819 — Silliman, 



266. 

 Tourmaline, Bozrah - — Webster, 290. 



Branchville — ^ Brush and Dana, 11. 



Haddam Neck — Bowman, 8. I 



production — 282. 

 Salisbury — Lee, 185. 

 Tracks of large birds — Hitchcock, 139. 

 Trap. See Triassic trap. 

 Trees, petrified, Bristol — Silliman, 277. 



Southbury — Hitchcock, 137. 

 Tremolite, Salisbury — Lee, 185. 



Triassic coal — Hitchcock, 136: Percival, 229; Silliman, 263. 

 Triassic formation, bibliography — Davis, 98; Russell, 253. 

 drainage — Rice and Gregory, 243a. 

 faults — Davis, 83, 84, 85, 86, 87, 88, 89, 98, 99; Hobbs, 15,=^; 



Rice and Gregory, 243a ; Russell, 249. 

 physical history — Dana, 46, 55, 75; Davis, 83, 84, 92, 98, 99; 

 Frazer, 118; Hitchcock, 146; Hobbs, 155: Jackson, 173; 

 Lyell, T94; Lyman, 195; Rice and Gregory, 243a; Smith, 279. 

 water supply — Fuller, 119. 

 Triassic limestone — Davis, 98; Lowrey. 191; Percival, 229. 

 Triassic sandstone, age — Agassiz, i ; Akerly. 3 ; Dana, 75 ; Davis, 98 ; 

 Hitchcock, 136, 138, 146; Jackson, 173; Lyell, 194; Lyman, 

 195; Maclure, 197; Marcou, ig8, 199; Rice and Gregory, 243a; 

 Russell. 249, 253. 

 comparison with other regions — Brongniart, 10; Dana, 34. 

 copper ores, Bristol — Dana, 75; Hulbert, 165: Whitney and 

 Silliman, 297; Granby — Benjamin, 5; Dana, 75; Hitchcock, 

 138: Manchester — ValchervilJe, 285. 

 fossils — -Barbour, 4; Davis, 77. 98; Deane, loi ; Eaton, 107: 

 Hitchcock, 136, 139, 142, 144, 146, 147: Knowlton, 180; Loper, 

 189; Lull, 192, 193; Lyell. 194; Marcou, 198, 199: Marsh, 

 203. 204. 205, 206. 207; Mather, 212; Miller, 219; Newberry, 

 221 ; Rice and Gregory, 243a ; Silliman, 277. 

 Portland — Johnston, 174; Merrill, 217, 218; U. S. Geol. Surv., 



282. 

 red color — Dana, 68; Russell. 252. 



