104
303
90

89

Agalmatolite, Chemical Analysis of a vari-

ety.
Allegbany and Ozark Mountains, System

of.
Alluvium of Lake Superior Region..
Aluminium and Sodium.
Amalgamation and Washing Gold Ores...
American School of Mines..
Analysis of Illinois Coals..
Analysis of Lake Superior Ore..
Antracite Coal Traile for 1856..

1856.
1855.

1856.
Anthracite Coals of Pennsylvania, Compo-

sition of some of.
Anthracite Iron...
Arrastre, the..
Auburn and Allentown oad--the New

Jersey Central, &c..
Aztec Mine.

95
326

356
278

Callaway Mining Company.
Cannel (oal and its Products.
Cast Metals, experiments with.
Catskill Mountain, System of..
Causes of the serious loss of Silver wbich

occasionally takes place during the

Roasting of Silver Ores..
Central Mine..
Chemical Examination of the Coals from

the Mines in Elk County, Penn.....
Chilian Mill, Construction of
Chontales, Gold Mines of..
Cinders from Blast Furnaces, Utilization
Cinnabar in Spain..
Cleansing Ores for Subsequent Picking..
Cleveland Mountain...
Cliff Mine..
Cliff Mine.
Clitf Mining Co.
Coal Anthracite, amount of Blast required

for its Combustion..
Coal Anthracite, Character and Constitution

181

29
517

of.....

343
150
812
412
116
811
519

B

397

397

258
291
298

Baltimore and Obio Railroad, Work and

Profits for a Series of Years.
Bessemer's Process..
Bessemer's Invention..
Bessemer's Process, Truran and others on
Bituminous Coals of Pennsylvania, Compo-

sition of some of.
Blast, Consumption of, in the Furnace..
Blast, Density of..
Blast Furnace, Form of the Interior of...
Blast, Mode of Applying..
Bloosburg Coal.
Boardman (oal Burner.
Borings as applied to the Search for Coal

Searns.
Brass, on the Formation of, by Galvanic

Agency..
Building Malerials, on the Mode of Testo

ing...

Coal Beds, Methods of Searching for and

Discovering
Coal Burning Boilers.
Coal-Burning Locomotives..
Coal, consumption of, in the manufacture of

Crude Iron.
Coal consumed at the Rumney Iron Works,

South Wales.
Coal Deposits, the external figure of.
Coal Distillation, and Purification of the

Products of..
Coal, Increase of Anthracite Trade
Coal Locomotives in the West..
Coal Measures and Aggregates.

894
78

12
78
90
ST

PAQE
Coal River, Improvements of

89
Coal Seams, to Determine by Boring the in-
clination and direction of

262
Coal, Supply of

851
Coal, the Mining of

73
Coal, the Mining of

463
Coal Wharies at Trenton, New Jersey. 75
Coast Range of California, Systein of 831
Collieries in South Wales, Daily Output of 894
Coloring for Stone

317
Commercial Aspect of the Mining Interest 275

878
419

489
Comparative Analysis of Illinois Coals, with

other American and Foreign Coals.. 259
Connecticut Mine

310
Copper Falls Mine...

279
Copper Veins of the South.

867
Crude Irın. Circumstances affecting the
Produce of...

55
Crude Iron, Circumstances affecting the
Quality of ...

48
Crude Tron, Quality and Fusibility of, De-

pendent on the Structure of the Ore 234
Crushing of Gold Ores...

27
Crystallization of Wronight Iron..

503
Cumberland Coal, Freight on..

281
Cumberland Goal Prices..

859
Cumberland Cou!
Cumberland Coal, Traile.

78
for 1856..

281
8S1
491

Gas, Purification of Coal..

895
Gases from Blast Furnaces, Utilization of 334
Geological Clas-ification of the Mountains of
a part of North America

821
Geological Reconnoissance of the State of
Tennessee

83
Geological Report of Ridgway Farm and
Land Company.

174
Gold Mining Company.

517
Gold Ores and their working.

415
Gold and Silver Ores, on the Loss of, in
Roasting

449
Goll Denosit Washings.

347
Gold in New Grenada, old methods of wash-
ing for..

303
Gold, kent's Apparatus for Separating

109
Gold Ores and their working..

23
265

814
Gold Shipments from San Francisco.. 418
Grass Valley, Quartz Mining in..

104
Great Britain, Mining Statistics of.

119
Great Conglomerate Lode.

303
Green Mountains or Meriden, in New Eng.
lanıl. System of

824
Grooving and Polishing of Hard Rock and
Minerals by Dry Sand..

421

H н
High Shoal Vein..
llot Blast.
Hot Blast Stores, Heating.
Ilungarian Amalgamation Mill..

873

Deep River, Coal Formation of.
Delaware and Hudson Canal Company's

Coal Trade....

854
289
241
415

77
280

66

East Lehigh Mines..

85
Eastern Massachusetts, Fossiliferous Forms;

in..
El Dorado County

107
Experience of the Gold mines of California 477
Experimental Mine...

479
Eureka Mines, California.

483
Experiinenis with Cast Metals.

95
Extensive Flume...

109
Eureka Mino..

413

I
Improvements in Smelting, and in Appa-
ratus.

101
Improving the Manufacture of Iron

102
Inclination and Direction of Coal Seam, to
determine by Boring..

262
Iron, Crude, circumstances affecting the
Quality of

48
Iron, Cruile, circumstances affecting the
Produce of

55
Iron Depwsits of New York State..

255
Iron Manufacture in Cincinnati for 1855,
Statistics of...

104
Iron Manufacture of Great Britain.

38
124
2347
334

425
Iron Mannfacture, Progress of.

103
Iron Manufacture, Statistics of.

293
Iron Ore, Lake Superior, Analyses of.. 301
Iron Ores. on the Occurrence of, in the
Azoic System.

67
Iron, Pennsylvania..

524
Iron, Reports and Experiments on the

Strength and other Properties of, for
Cannon

4.56
Iron Seams of Montour Ridge, Penn.

93
Iron Manufactures at Cincinnati..

411
Iron Region of Lake Superior..

412
Isle Royale Mine....

112
278

878
Jackson Mountain.

418

к

285

871
279

Kent's Apparatus for Separating Gold...... 109
Keweenaw Point and Cape Bloinidon, Sys.
tem of.

827
Keystone Mine..

486