u 



INDEX. 









Page. 



Cornish, Dr. discovers 



limestone 



at 



Coimbatore, 







... 24G 



Cot MuUay. 







. . 211 



Current marking, 







... 125 



Cyrtoma, 







... 119 



D. 



D.M.TON, Capt. examination of aurifer- 

 ous deposits of Assam, by, 90, 9.3 

 Damoodah, or Burdwan Coal field, 74, 

 67, 78; Damoodah group, 46, 56, 64; 

 namewhy adopted, ... ... 84 



Daversolabetta, 221, trap at, ... 226 



DeBenza, Dr., ... ... 21G 



Deinchi, ... ... ri4 



Dunkenal, ... 4 44 



Denudation, in Taleheer, evidences of, 

 34, 45, 65, 83 ; unequal, 6.i, 74 ; 

 greater in west of field, 66 ; denuda- 

 tion of lower beds, 65 ; of upper 

 gists. ... ••■ 74 



„ in Khasi Hills, marine, 171 ; fresh 



■water, 173, 174; rapidity of, ... 175 



.,mNilghiri hUls, ... ... 237 



Dereng fault ... 53, 54, 73 



Devil's gap, ... ... 227 



Diamonds in Mahanuddi, ... 88 



Digaroo stream, ... ... 91 



Dihong river, rich in gold, ^ ... 92 



Disturbances main line of in Khasi hills, 

 170; in Nilghiris, .. ... 230 



Dodabetta, 219,221,222,239 



Dolham, ... 68, 73 



Doramookh, ... ... 91 



Dourisai, ... 53, 64 



Dykes, granite and traversing gneiss, 

 34; absence of basaltic, or other dykes 

 in coal district, Taleheer, 37, 83; in 

 Bancoorah, 255; in Nilghiris, ... 226 



E. 



Economic geology, ... 180, 244, 276 

 Elevation, gradual, of the coast of Cut- 

 tack, and of whole of.Peninsula, note, 

 89; of places in the Khasi Hills, ... 209 

 Elk fall, . ... ... 231 



Epidotio granite, ... ... 258 



E. 



FALSE-bedding, _ ... 120, 125 



Faults, Cherra Poonjee, in coal, direc- 

 tion of, 145; corresponds with that of 

 dykes, 159; probably great fault along 

 hill face, ... ... 1G7 



— in Nilghiris, ... ... 230 



— Taleheer, 53, 60, 64; amount of 

 downthrow, ... ... 68 



Felspar, and felspatic granite, ... 36 



Eloads, in Khasi Hills, ... ... 176 



Page. 



I'lux, none used in iron smelting, 14; 

 ash of ch.ireoal, serves for, 17, 20; 

 none, except kunkur, in the field, 

 where to be sought, ... 20, 87 



Foliation, in Nilghiris, ... ... 220 



Fossils, vegetable, 59, 76, 81; animal, 

 82; loss of fossil collection, 100, 179; 

 in tertiary sandstones, 118, 131 



Fuel, charcoal alone used in smelting, 

 10; waste of, 14; importance of con- 

 sidering, 24; heating power of, 26; 

 abundant supply of, ... 28, 



Furnaces, now used for Iron smelting, 

 14, 15; kinds recommended, Renton's. 

 21, 22; Eckmann's, 23; expen.se of 

 erecting. 



87 



29 



G. 



2 



9; 



Ganjam, 



Gangpur, Coal of, (Capo Saxton) 



Sedimentary basin of,... ... 74 



Garnets in gneiss (Taleheer), 40, 41 ; in 



Nilghiris, ... 221, 22» 



Garo hills, ... ... 102- 



Ghora hills, ... ... 67 



Glaciers, no evidence of, ... 50 



Gneiss, varieties of, 39; metamorphosed, 38 



Gold, reported, 4, 3f.; locaUties of, 88, 207 



Gold, deposits, Assam, 90, 94; not in 



situ, 92; produce, 92, 93; assays of,... 



„ in Pegu, 94; probable occurrence 



throughout Malay Peninsula, &c. 96, 



Goora-mora, 



Gopalprasad, shales of, &e., 6, 59, 60. 

 Gop house (Midnapur), ... 

 Gossan, ore resembling, ... 

 Granite, character of, 37,38; veins of, 

 near Cherra, 111; near Sohiong, 113; 

 at Oomgot, 115; in sandstone, 127; 

 extent, 151 ; composition, 151;blocky 

 character, 

 Graintoid gneiss in Nilghiris, 

 Graphite, 



Greenstone, near Mowphlang, 112; 

 near Kalapani, 122; general charac- 

 ter, 157; dykes of, 157; earthy, near 

 Maw-m'luh, 

 Grits, lower or Taleheer, 47 ; upper or 



Mahadeva, 

 Gusirimal, .. 54, 



Gutiapal, 

 Guzlehutty pass, 

 Gypsiferous series. 



93 



97 

 92 

 66 

 272 

 13 



153: 

 220 

 219 



158 



64 



55 



36 



211 



171 



H.EMATITE, ... ... 219 



Hannay, Col. examination of auriferous 

 deposits of Assam by, with Capt. Dal- 

 ton, ... 90, 93 



Haughton, Capt. Geology of S. W. 

 Frontier, ... ... 74 



