Volume 43
Containing the Papers and Discussions of the New York Meeting, February, 1912 and the Papers of the New York and Spokane Local Sections

Title Page

Preface

Contents

Officers

Past Officers

Honorary Members

List of the Meetings

Publications

Certification of Incorporation

Constitution and By-laws

Annual Meeting

Proceeding of the Board of Directors for the Year 1911

Special Financial Report Concerning Engineering Societies Building

Proceedings of the Council for the Year 1911

Institute Activities for the Year 1911

Proceedings of the Board of Directors for the Year 1912

Proceeding of the Council for the Year 1912

Institute Activities for the Year 1912

Membership

PROCEEDINGS OF MEETINGS

MEETING	DATE
New York Meeting	February, 1912

PAPERS:

SAN FRANCISCO MEETING February, 1912

TITLE	AUTHOR
The Mineral Production and Resources of China	Thomas T. Read
The Mining Industry of Japan	Keijiro Nishio
Notes on the Laramie Tunnel	David W. Brunton
A Modification of the “Gay Lussac” Method for Silver Bullion Containing Tin	Luis Emylnn Salas
The Black-Mountain Coal-District, Kentucky	J. B. Dilworth
The Geology of the Tonopah Mining-District	Augustus Locke
The Laws of Igneous Emanation Pressure	Blamey Stevens
Physical Data of Igneous Emanation	Blamey Stevens
Gold-Mines in Southern Colombia	Fortunato Pereira Gamba

NEW YORK MEETING February, 1912

TITLE	AUTHOR
Contribution to the Study of the Pre-Cambrian Rocks of the Harney Peak District of South Dakota	Gordon S. Duncan
The Occurrence of Silver-, Copper-, and Lead-Ores at the Veta Rica Mine, Sierra Mojada, Coahuila, Mexico	Frank R. Van Horn
Geology of Harrison Gulch, in Shasta County, California	H. E. Kramm
The Geology and Ore-Deposits of the Silverbell Mining-District, Arizona	C. A. Stewart
The Bearing of the Theories of the Origin of Magnetic Iron-Ores on Their Possible Extent	Frank L. Nason
The San Nicolás Mining-District, San Nicolás, Tamaulioas, Mexico	Irving H. Wentworth
A New Electric Miners’ Lamp	David B. Rushmore
A Concise Method of Showing Ore-Reserves	N. H. Emmons
Progress in Roll-Crushing	C. Q. Payne
Abrasion and Dust-Losses in Ore-Drying	Carl F. Dietz and Dyke V. Keedy
The Sintering of Fine Iron-Bearing Materials by the Dwight & Lloyd Process	B. G. Klugh
Agglomeration of Fine Materials	Walter S. Landis
Sintering and Briquetting of Flue-Dust	Felix A. Vogel
The Schumacher Briquetting Process	Joseph W. Richards
The Briquetting of Iron-Ores	N. V. Hansell
Electrostatic Concentration or Separation of Ores	Henry A. Wentworth
The James Diagonal-Plane Slimer	S. Arthur Krom
The Rational Valuation and Quality-Efficiency of Furnace-Stock	John Jermain Porter
The Refining of Blister-Copper	Horace H. Emerich
Treatment of Mine-Water from the Ashio Copper-Mine	Joseph W. Richards
Vanadium in Pig-Iron	Porter W. Shimer
Treatment of Complex Silver-Ore at the Lucky-Tiger Mine, El Tigre, Sonora, Mexico	D. L. H. Forbes
Electrical Fume-Precipitation	F. G. Cottrell
An Early Discovery of Fullers’ Earth in Arkansas	J. C. Branner
The Decomposition of Metallic Sulphates at Elevated Temperatures in a Current of Dry Air	H. O. Hofman and W. Wanjokow
The Direct Determination of Small Amounts of Platinum in Ores and Bullion	Frederic P. Dewey
The Solubility in Nitric Acid of Gold Contained in Certain Copper-Alloys (Copper-Bullions)	Edward Keller
Alaska Coal-Land Problems	H. Foster Bain
Flameless Combustion	Carleton Ellis
Electric Hoist at the Hecla Mine	E. M. Murphy
Efficiency-Engineering Applied to Mining	G. A. Collins
Mining-Methods at Nacozari, Sonora, Mexico	D. C. Livingston
Replaceable Lips for Elevator-Buckets	H. J. Maguire
Ore-Treatment at Republic, Washington	Francis A. Thomson
The No. 2 Unit of the Mill of the Bunker Hill & Sullivan Mining & Concentrating Co.	R. S. Handy
The Macquisten Tube Flotation Process	O.B. Hofstrand
The San Poil Mill, Republic, Wash.	Edward C. Morse

DISCUSSIONS

TITLE	AUTHOR
Of Mr. Young’s Paper on Slime-Filtration (see Trans., xlii., 752)
Of Mr. Brunton’s Paper on Notes on the Laramie Tunnel (see p. 99)
Of Mr. Emmons’s Paper on A Concise Method of Showing Ore-Reserves (see p. 322)
Of Mr. Payne’s Paper on Progress in Roll-Crushing (see p. 327)
Of Mr. Klugh’s Paper on The Sintering of Fine Iron-Bearing Materials by the Dwight & Lloyd Process (see p. 364)
Of Mr. Vogel’s Paper on Sintering and Briquetting of Flue-Dust (see p. 381)
Of Mr. Richard’s Paper on The Schumacher Briquetting Process (see p. 387)
Of Mr. Hansell’s Paper on The Briquetting of Iron-Ores (see p. 394)
Of Mr. Emerich’s Paper on The Refining of Blister-Copper (see p. 446)
Of Mr. Cottrell’s Paper on Electrical Fume-Precipitation (see p. 512)
Of Mr. Bain’s Paper on Alaska Coal-Land Problems (see p. 595)
Of Mr. Ellis’s Paper on Flameless Combustion (see p. 612)

INDEX

TITLE	AUTHOR
Index