1119 
INDEX. 
: PAGE PAGE 
Fowler coal—at Moxahala, 904 (Lower Free- Groff coal, 48, 49 (See Brush Creek coal). 
port). Guernsey county — mines of, 262; seams 
Fox Lake mine—792; explorations at, 794, 795. mined, 283. 
Iitop:< Ieyrin GORY) STM BYE ,cagssoqc5c00 000000 555000000000000000 
Franklin block ore (see iron ores). H 
Fredericktown anticlinal—185, sections at 44. ; 
Fee pOrt SOUP ............-ececceesecceccesccccsceceaces 23- 40 Halderman, L. & Sons, stone quarries of......... 586 
Freeport LimestOnes ..............ceesseeeeeesoes 2)oy ls 2h | amilton’s mine, 986 (Upper Freeport). 
Furnaces—comparison of capacity and yield, ElamlevzayR urilrriiirc een nen eer aee 980 
521; construction of Mahoning Valley, 
524; coke and coal, workirg of, 520, 540; 
in mines, 364; air moved by, 365; out- 
liers of, coal and coke, 520, 
Furnace coals—l52; Mahoning Valley, 178; 
Hocking Valley, 928, 959, 961, 962, 967; 
Jackson district, 1012, 1013, 1014, 1015. 
Fuels—consumption of, in blast furnace, 463; 
in Tuscarawas furnaces, 468; economy 
of, in blast furnace, 513; for iron busi- 
ness, 443; of Hocking Valley iron dis- 
trict, 480. 
G 
Gas—natural, at Steubenville, 219; at Bril- 
liant, 208. 
Gas—artificial, first production of, 726; mag- 
nitude of present production, 725; puri- 
fication of, 724, quantity and illuminat- 
ing power from various coals, 722 ; sul- 
phur in, 724; works, capital required to 
operate, 726. 
Gas coals of Ohio—722; consumption of, 726, 
727; points which determine value of, 
722; analysis asa means of judging of, 
724; ash in, 725; Middle Kittanning coal 
as a, 727; other coals, 153. 
Gas coke, ‘Youghiogheny Bes Seat bs eae eteas dasdshes 728 
Gases—calorific power of waste, 539; utili- 
zation of waste, in charcoal furnaces, 
513; found in mines, 359, 361 ; generated 
in mining, 361. 
Geological Survey of New Jersey—645, 649, 
650; Geological Survey of Penn’a Ist, 1, 
5, 138; Geological Survey of Penn’a 2nd, 3, 
0, 18, 17, 18, 21, 27, 180; results of, 9. 
Gilliland coal, of Hamilton township SPEIER 
GJ OTS VTL es ae ep Ra ame EE etek Saba es 
GLACIAL BOUNDARY—chapter on, 750; map 
of, in Ohio, 754; 1n North America, 756; 
by whom traced, 753, 754; consists of, 
752; in New Jersey and Pennsylvania, 
755 ; In Indiana, 758; in Kentucky, 759; 
counties traversed by, 758, 759; crosses 
Ohio river, 762; forms an ice dam, 768, 
764 ; changes in direction, 767, 769; 
sharply defined, 757, 760. 
Glacial drift—in Columbiana Co. , 187; in State, 
750, 771. 
Glacial scratches (see glacial striae). 
Glacialistriaee oe 615, 750, 751, 770, 771 
GIAcialOte nna Cesteeree cere eee ae ee 760 
Glasgow Furnace Co.’s coal, 282 (see Lower 
Freeport (coal). 
Glase OW? HULME COS beta en aerate aoe eres cick eee aed 468 
GIASSUDOUS Repeaters tericnc se sc ssosetesalicoa teen eoke 701 
Glass sand, 592; from conglomerate, 385. 
GIAZedMi ric aeeeeneins Ae NERC wy (ECT 706 
Glen RO Peres Sea, eat Sade Kole ete Leis ee 1016 
Gnadeniiutten Coal, Section Of............cccceccees 274 
Goodman’s Hill limestone...............c00 aeiecesenes 31 
Goshen Coal Co.’s mine, section Of ...........esce0 269 
Graham Come serch ececcc esata cesses Ae 725 
Gray limestone (see Upper Mercer; also Ferri- 
ferous). 
Great Vein coal (Middle Kittanning), how 
reduced to normal Sseam...............c000 921- 946 
Greenneldgquarricsmeeee eee 622 
Greentown coal—(see Brookville coal), 230; 
general section, 231; structure of, 232; 
analysis of, 233. 
Grindstones—manufacture of, at Independ- 
ence, 582; at Berea, 583 ; at Amherst, 
986; at Peninsula, 588 5 at Massillon, 
092; at Marietta and Consttiution, 607. 
Hammondsville Strip Vein, 48, 165, 186, 209 ; 
coke of, 209 (See Middle Kittanning 
coal). 
Hanging Rock District—Geology of, 117; sec- 
tion of, 122, 1087. 
Hanging Rock iron Gistrict......sccececccsececeeceeeee 482 
Happy Hollow coal, 107, 984, 985 (see Upper 
Freeport coal). 
Harrison mining machine . ...345, 972, 965 
Hartford mine, in Cambridge Coal A ae 296 
Hawes, Geo. VV Ch ARE tee LU ME es Fe 977— 608 
Hawks’ Station, coal mines Of.....ccccccccssses cscs 1002 
Hayden, Peter, mines Of............ ..sceseesessee scenes 963 
Heat requirement of Blast Furnace............... 549 
Helen Kurnace Mmine..................c00 Saisstelontacess 969 
Hep pel Mas wWrssstccscstccscercacderesccseetemerece mC OS: 
itch Cock iC ME ee icsccbscescecscetestesseen, eee 184- 754 
JEOTRO NECOK, JBC VEWRG! a cccdco0000d06.8000900000006%90050000000 753 
Hocking Valley Coal Field—106, 912, S91: area. 
of, 912; map of, 918; history of, 915; sec- 
tion of, 918 ; structure of seam, 921, 934, 
935; character of coal, 924; methods of 
mining, 925; general regularity of seam, 
925; divisions of field, 926 ; normal seam, 
922, 935; Supplementary seam, character 
of, 923, 935: uses of, 928; failures of coal, 
due to what, 936; production of, 912; 
strength of coal dependent on top 
benches, 958, 967. 
Hocking Valley TRON, CUIETFEIOL, cocccocs000009 soa0od ona. 473 
1B IYO Kegey A Jed Bele Saree cece eer Gee EeP ue 843- 849 
Holmes county—inines of, chapter on, 816; 
conditions of coal, 816; order of seams, 
817; amount of coal present, 816; general 
section of, 818; Sections of, 842, 837. 
Home mines, 865; analySis ...............cececcee scones 866 
LELOTTIVEN, OOK! SLOG IKOING 5500600000000000000000000000000000 3- 10 
ROPE WeElNCOB] sieves ocesectccecschascesceantonesmontoeses 869 
Horn coal (see coal). 
© ISIOVSELOAOKS)? tI COB ncooacencccce 6200000000000 wanenes 291 
la (opests) (Ongerel te THB OVES) <.c0G00001c0000 og0000000000000000 00) 000000 1014 
Hot blast, in Coal fUrnaceS ...............2cceecee veeees dol 
House coal ...... BOSCO EEEO AEC ESS SOOO OCR La) 
Howeils, Anthony . See sa Sica pane coocasless Sosetawaees uoebeees 815 
Hunt, T. S., on extension of Nelsonville coal, 
| 114, 109; on Hocking Valley coal........... 916 
Huron Shaft’ SUUNDT Obese ieecnciees Seale oseaceaeeeaes 1014 
Huron shale, used as & pipe-Clay.........0....2..00 658 
It 
Ice dam, in glacial period.................... 762, 7638, 764 
Inskeep, J. M., stone quarries Of .............. 2.20006 601 
Iron—griding of, 511; composition of, 542; 
chilling of charcoal iron, 511; transpor- 
tation of, 441; silvery iron, 512, 542, for- 
mation of, 549. 
Iron manufacture in Ohio—438; first manu- 
facture of, in Ohio, 447; early produc- 
tion of, in Ohio, table, 450; regions of 
manufacture, 453; in Hanging Rock dis- 
trict, 483; in Mahoning Valley district, 
463. 
Tronton—1044, 1051, 1052; furnaces of, 504. 
IRON ORES OF OHIO—Cchapter on, 371; classifica- 
tion of, 375, 376; contract system of 
handling, 471; distribution of, 380, 381; 
horizons of, 871, 375, 378, 379, 1025, 1086 ; 
louping of, 499; roasting of, 498; wash- 
ing of, 498. . 
Iron ores—in Clinton limestoie, 371; in 
Niagara group, 372; in Waverly, 373; 
in sub-carboniferous limestones, 373; 
in lower coal measures, 373, 375; in 
barren measures, 374, 375, 921. 
