-iv-

Gold-Quantitative Separations

Iron, Aluminum or Chromium from Magnesium or from manganese, zinc,

249

Separate Estimation of Hydrofluoric and Sulphuric Acids.....

Separating Arsenic from Antimony, etc.

245

253

248

Advantages and Applications of the Electric Drive. By F. B. Crocker and M.
Arendt

61

Air Blasts, Stresses in the Country Rock as the cause of, in the Mines at Pribram,

Bohemia. By H. Stefan .....

423

American Law Relating to Minerals. By C. H. Shamel....

I

Application of Metallography to Opaque Minerals. By W. Campbell..................................
ARENDT, M. AND CROCKER, F. B. Advantages and Applications of the
Electric Drive.......

414

61

BATES, PUTNAM A., Isolated Plant Engineering

BLEICH, S. D, Internal Stresses in Masonry.....

269

33

American Telephone Practice. By Kempster B. Miller...

Cement and Concrete. By Louis Carlton Sabin.......

Cements, Limes and Plasters; their Materials, Manufacture and Properties.

Edwin C. Eckel

Copper Mines of Lake Superior. By T. A. Rickard...................

Cyanide Industry, Theoretically and Practically Considered.
and M. Lengler. Translated by J. A. Le Clerc .......

Earth and Rock Excavation, a Practical. By Charles Prelini.................

Economics of Mining. By T. A. Rickard, W. R. Ingalls, H. C. Hoover,

R. G. Brown and other specialists........

By R. Robine

363

258

260

Electric Transmission of Water Power. By A. S. Adams
Experimental Electrochemistry. By N. Monroe Hopkins
Experimental Researches on the Constitution of Hydraulic Mortars. By
Henri Le Chatelier. Translated by Joseph Lathrop Mack.......

461

364

262

Hand Book of Metallurgy. By Carl Schnabel. Translated by Henry Louis. 266
High Tension Power Transmission

86, 461

Laboratory Guide to the Study of Qualitative Analysis Based upon the Ap-

plication of the Theory of Electrolytic Dissociation and the Law of Mass

Action. By E. H. S. Bailey and Hamilton P. Cady...

Manual of Chemical Analysis as Applied to the Assay of Fuels, Ores,

Metals, Alloys, Salts, and other Mineral Products. By Eugene Prost,

Translated by J. J. Cruickshank Smith

261

263

Minerals in Rock Sections. Revised edition. By Lea McIlvane Luquer... 264

Nature of Ore Deposits. By Richard Beck..

257

New Knowledge. By Robert Kennedy Duncan.......

263

Notes on Electrochemistry. By F. G. Wiechman

363

Production of Aluminium and its Industrial Use. By Adolphe Minet.

Translated, with additions, by Leonard Waldo......

265

Pyrite Smelting. Edited by T. A. Rickard...

83

Select Methods in Food Analysis. By Henry Leffmann and William Beam. 264

Technical Methods of Ore Analysis. By Albert H. Low.....

261

CAMPBELL, WILLIAM. Application of Metallography to Opaque Minerals........

Cane Sugar Factories; Chemical Control of. By W. D. Horne........

Chemistry, Analytical Abstracts, see Analytical Chemistry. Abstracts.

Constitution of Quinine. By B. L. Murray.....

414

128

CROCKER, F. B. AND ARENDT, M. Advantages of the Electric Drive......

Crushing Machinery, Effect of Variations in the speed of, upon the Production of

Undersized Material. By H. W. Gartrell.......

Crystal, Determination of the Geometrical Constants of a, from its Interfacial

Angles. By A. J. Moses........

432

Dams, Internal Stresses in Masonry. By S. D. Bleich...

33

Determination of Minerals in Crushed Fragments by Means of the Polarizing

Microscope. By A. F. Rogers................

340

Determination of the Geometrical Constants of a Crystal from its Interfacial

Angles. By A. J. Moses.

432

Development, Historical, of General Chemistry. By W. Ostwald.........87, 313, 388
Drive, Advantages and Applications of Electric. By F. B. Crocker and M.
Arendt......

61

Effect of Variations in the Speed of Crushing Machinery upon the Production of

Electric Drive, Advantages and Applications of the. By F. B. Crocker and M.

Arendt......

Engineering, Isolated Plant, By P. A. Bates.................

Fossils, North American Index. By A. W. Grabau and H. W. Shimer.........

GARTRELL, H. W. Effect of Variations in the Speed of Crushing Machinery

upon the Production of Undersized Material...

28

61

269

138

28

Geology of Pioche, Nevada, and Vicinity. By Fred J. Pack..

GRABAU, AMADEUS W. AND SHIMER, HERVEY WOODBURN.

Index Fossils.....

285, 365

North American

138

Historical Development of General Chemistry. By W. Ostwald..... ..87, 313, 388

HORNE, WILLIAM D. Chemical Control of Cane Sugar Factories..

Index Fossils, North American.

By A. W. Grabau and H. W. Shimer.....

Internal Stresses in Masonry Dams. By S. D. Bleich........

Isolated Plant Engineering. By Putnam A. Bates.......

Masonry Dams, Internal Stresses in. By S. D. Bleich....
Metallography, Application of, to Opaque Minerals. By W. Campbell.......
Minerals, American Law Relating of. By C. H. Shamel...

128

138

33

269

33

414

I

66

Application of Metallography to Opaque. By W. Campbell.

Minerals, Determination of, in Crushed Fragments by Means of the Polarizing

Microscope. By A. F. Rogers.........

414

340

Mines, Stresses in the Country Rock as the Cause of Air Blasts in the, at Pri-

bram, Bohemia. By H. Stefan

423

MOSES, ALFRED J.

Determination of the Geometrical Constants of a Crystal

from its Interfacial Angles.......

432

MURRAY, BENJAMIN LINDLEY. Constitution of Quinine

Nevada, Geology of Pioche, and Vicinity..

39

285, 365

North American Index Fossils. By A. W. Grabau and H. W. Shimer...

Opaque Minerals, Application of Metallography to. By W. Campbell..

OSTWALD, WILHELM. Historical Development of General Chemistry....87,

Over-Winding in Hoisting Operations. By R. Peele.......

PACK, FRED. J. Geology of Pioche, Nevada, and Vicinity..

PEELE, ROBERT. Over-Winding in Hoisting Operations..

138

414

313, 388

118

285, 365

118

Pioche, Geology of, Nevada, and Vicinity. By F. J. Pack........

.285, 365

Polarizing Microscope, Determination of Minerals in Crushed Fragments by

Means of the.

By A. F. Rogers..........

340

Quinine, Constitution of. By B. L. Murray

39

ROGERS, AUSTIN F. Determination of Minerals in Crushed Fragments by

Means of the Polarizing Microscope

340

SHAMEL, CHARLES H. American Law Relating to Minerals..

I

SHIMER, HERVEY WOODBURN and GRABAU, AMADEUS W. North American
Index Fossils..................

138

Speed, Effect of Variations in the, of Crushing Machinery upon the Production
of Undersized Material. By H. G. Cartrell......

28

STEFAN, HUGO. Stresses in the Country Rock as the Cause of Air Blasts in the

Mines at Pribram, Bohemia....

423

Stresses, Internal, in Masonry Dams. By S. D. Bleich................

33

66

in the Country Rock as the Cause of Air Blasts in the Mines at Pribram,

Bohemia. By Hugo Stefan

The American Law Relating to Minerals. By Charles H. Shamel,

M.S., L.L.B., A.M.

The Effect of Variations in the Speed of Crushing Machinery upon the

Production of Undersized Material. By H. W. Gartrell...

Internal Stresses in Masonry Dams. By S. D. Bleich

The Constitution of Quinine. By Benjamin Lindley Murray...

Advantages and Applications of the Electric Drive. By F. B. Crocker

and M. Arendt

Alumni and University News

Book Reviews......

I

28

33

39

61

75

83

COLUMBIA UNIVERSITY

NEW YORK CITY.

Registered at the New York Post Office as Second Class Matter.

NUMBER.

TWO DOLLARS PER YEAR. FIFTY CENTS PER

All Remittances should be made payable to Order of "The School of Mines Quarterly."

and Electric Trucks

Burnham, Williams & Co., Philadelphia, Pa., U. S. A.

Cable Address "Baldwin" Philadelphia

BEST QUALITY AND GREATEST EFFICIENCY GUARANTEED

THEREFORE, MORSE TOOLS ARE THE MOST ECONOMICAL

MORSE TWIST DRILL AND MACHINE CO.

NEW BEDFORD, MASS., U. S. A.

We make and carry in stock various styles of Arbors, Reamers, Chucks,

Counterbores, Countersinks, Dies, Three and Four Groove Drills, Drills with Oil

Holes, Jobbers' Drills, Letter Drills, Wire Drills, Gauges, Mandrels, Metal Slit-

ting Saws, Cutters with Solid and Inserted Teeth-Axial, Radial, Angular,

Form and Gang Cutters; a full line of Taps, Adjustable Tap Wrenches, Opti-

cians', Model Makers' and Machinists' Screw Plates and Dies, Solid Pipe Dies

and Solid Machine or Bolt Dies, Tools for Turret Head Machines and many

others; being made, as are all of our tools, of the best material and by the best

workmen, their accuracy and effectiveness are assured.

1