Volume 42
Containing the Papers and Discussions of 1911
Title Page
Preface
Contents
Officers
Past Officers
Honorary Members
List of the Meetings
Publications
Constitution and By-laws
Annual Meeting
Proceeding of the Board of Directors for the Year 1910
Report of the Council for the Year 1910
Memebrship

PROCEEDINGS OF MEETINGS

MEETING DATE
Wilkes-Barre Meeting June, 1911
San Francisco Meeting October, 1911

PAPERS:

CANAL ZONE MEETING, November, 1910

TITLE AUTHOR
The Agency of Manganese in the Superficial Alteration and Secondary Enrichment of Gold-Deposits in the United States William H. Emmons

WILKES-BARRE MEETING June, 1911

TITLE AUTHOR
The Iron-Ore Deposits of the Moa District, Oriente Province, Island of Cuba Jennings S. Cox
Origin of the Iron-Ores of Central and Northeastern Cuba C. K. Leith and W. J. Mead
Occurrence, Origin, and Character of the Surficial Iron-Ores of Camaguey and Oriente Provinces, Cuba Arthur C. Spencer
The Mayari and Moa Iron-Ore Deposits in Cuba C. Willard Hayes
Characteristics and Origin of the Brown Iron-Ores of Camaguey and Moa, Cuba Willard L. Cumings and Benjamin L. Miller
Exploration of Cuban Iron-Ore Deposits Dwight E. Woodbridge
The Mayari Iron-Mines, Oriente Province, Island of Cuba, as Developed by the Spanish-American Iron Co. James E. Little
The Preparation of Brown Iron-Ores H. S. Geismer
The Sintering of Fine Iron-Bearing Materials James Gayley
The Fuel-Efficiency of the Iron Blast-Furnace John Jermain Porter
The United States Iron Industry from 1871 to 1910 John Birkinbine
Chamber-Pillars in Deep Anthracite-Mines Douglas Bunting
Mine-Caves Under the City of Scranton Eli T. Conner
The Preparation of Anthracite Paul Sterling
The Storage of Anthracite Coal R.V. Norris
Anthracite-Culm Briquettes Charles Dorrance, Jr.
The Anthracite Board of Conciliation Samuel D. Warriner
Lead-Smelting in the Ore-Hearth J. J. Brown, Jr.
The Caddo Oil- and Gas-Field, Louisiana Walter E. Hopper
Tunnel-Driving in the Alps W. L. Saunders
Mining-Costs at Park City, Utah Fred T. Williams
Geology of the Cobalt District, Ontario, Canada Reginald E. Hore
Origin of Certain Bonanza Silver-Ores of the Arid Region Charles R. Keyes
Assay of Silver-Bearing Gouge-Ores Charles R. Keyes and D. F. Riddell
Diagonal-Plane Concentrating-Table S. Arthur Krom
Electric Motors Versus Compressed-Air Engines for Driving Deep-Mine Hoists K. A. Pauly
Mine-Rescue Service of the State of Illinois H. H. Stoek
History and Geology of Ancient Gold-Fields in Turkey Leon Dominian
Treatment of Nicaraguan Gold-Ores Henry B. Kaeding
The Continuous System of Cyaniding in Pachuca Tanks Huntington Adams
Notes on Huntington Mills in Nicaragua Clarence Carleton Semple
Canadian Mining-Law J. M. Clark
A Drafting-Table for Tracing Through Opaque Paper A. T. Schwennesen
The Universal Metalloscope – A Perfected Microscope for the Examination of Metals Albert Sauveur
Apparatus for Metallography Carle R. Hayward

SAN FRANCISCO MEETING October, 1911

TITLE AUTHOR
Biographical Notice of Samuel Franklin Emmons George F. Becker
The Fritz Engineering and the Coxe Mining Laboratories of Lehigh University Joseph Daniels
The Newport Iron-Mine B. W. Va
Notes on the Liberty Bell Mine Charles A. Chase
Rapid Estimation of Available Calcium Oxide in Lime Used in the Cyanide Process Luther W. Bahney
Electrolytic Oxygen in Cyanide Solutions T. H. Aldrich, Jr.
Slime-Filtration George J. Young
The Cyanide-Plant at the Treadwell Mines, Alaska W. P. Lass
The Parral-Tank System of Slime-Agitation Bernard MacDonald
Present Conditions in the California Oil-Fields Mark L. Requa
Gold-Production in California Charles G. Yale
Examination of Dredging-Properties Francis J. Dennis
Present-Day Problems in California Gold-Dredging Charles Janin
Electrolytic Refining at the U. S. Mint, San Francisco, Cal. Edward B. Durham
Phosphorus in Coking-Coal Charles Catlett

DISCUSSIONS

TITLE AUTHOR
Of Mr. Wraith’s Paper on Sampling Anode Copper, with Special Reference to Silver Content (see Trans., xli., 318)  
Of Mr. Dilworth’s Paper on A Method of Calculating Sinking-Funds, and a Table of Values for Ordinary Periods and Rates of Interest (see Trans., xli., 533)  
Of Mr. Riter’s Paper on Mine-Survey Notes (see Trans., xli., 790)  
Of Mr. Emmons’s Paper on The Agency of Manganese in the Superficial Alteration and Secondary Enrichment of Gold-Deposits in the United States (see p. 3)  
Of Mr. Conner’s Paper on Mine-Caves Under the City of Scranton (see p. 246)  
Of Mr. Hore’s Paper on Geology of the Cobalt District, Ontario, Canada (see p. 480)  

INDEX

TITLE AUTHOR
Index  
Eratta