Volume 96
General Volume
Title Page
Preface
Contents
Officers and Directors
A. I. M. E. Standing Committees
Proceedings of Meetings in 1931
Necrology

PAPERS:

TITLE AUTHOR
Recently Discovered Complexities in the Properties of Simple Substances (Science Lecture) P. W. Bridgman

Metal Mining

TITLE AUTHOR
Mining Methods and Costs at Presidio Mine of The American Metal Co. of Texas Van Dyne Howbert and Richard Bosustow
Top Slicing with Filling of Slices, as Used at the Charcas Unit of the Cia. Minera Asarco, S. A, (With Discussion) Howard Willey
Drill Sampling and Interpretation of Sampling Results in the Copper Fields of Northern Rhodesia (With Discussion) H. T. Matson and G. Allan Wallis
Ventilation at the Portovelo Mines, Ecuador John P. Harmon
Operation of Pressure Fans in Series (With Discussion) Walter S. Weeks and Vitaly S. Grishkevich

Nonferrous Metallurgy

TITLE AUTHOR
Arsenic Elimination in the Reverberatory Refining of Native Copper (With Discussion) C. T. Eddy
High-silica Retorts at the Rose Lake Smelter (With Discussion) G. L. Spencer, Jr.
Failures of Cast-iron Kettles in Lead Refining (With Discussion) Carl E. Swartz
Investigation of Anodes for Production of Electrolytic Zinc, II H. R. Hanley, C. Y. Clayton and D. F. Walsh
Extraction of Tantalum and Columbium from Their Ores Colin G. Fink and Leslie G. Jenness

Nonmetallic Minerals

TITLE AUTHOR
Application of the Wire Saw in Marble Quarrying (With Discussion) W. M. Weigel
Barite in California Walter W. Bradley
Hydration Factors in Gypsum Deposits of the Maritime Provinces (With Discussion) H. B. Bailey
Scope of the Light-weight Aggregate industry (With Discussion) Herbert Hughes
Chivor-Somondoco Emerald Mines of Colombia – with appendixes by Charles Mentzel and C. Kendrick MacFadden (With Discussion) P. W. Rainier

Mining Geology

TITLE AUTHOR
Some Relations of Ore Deposits to Folded Rocks (With Discussion) W. H. Newhouse
Age and Structure of the Vein Systems at Butte, Montana James C. Ray
Geology of the Parral Area of the Parral District, Chihuahua, Mexico (With Discussion) Harrison Schmitt
Ore Deposition in Open Fissures Formed by Solution Pressure (With Discussion) Alfred Wandke
Zonal Relations of the Lades of the Sumpter Quadrangle D. F. Hewitt
Pao Deposits of Iron Ore in the State of Bolivar, Venezuela (With Discussion) Ernest F. Burchard
World Production and Resources of Chromite (With Discussion) Lewis A. Smith
Occurrence of Quicksilver Orebodies (With Discussion) C. N. Schuette
Occurrence of Petroleum in North America (With Discussion) Sidney Powers

Gold Supply Symposium

TITLE AUTHOR
Future Gold Production-the Geological Outlook L. C. Graton
Possibilities of Gold from Low-grade Ore in South Africa F. Lynwood Garrison
The Gold Situation (Summary) George E. Roberts
Sources and Trends in Gold Production (Summary) Robert J. Grant and John B. Knaebel
Gold Supply in Its Relation to Currencies and World Commerce (Summary) A. C. Milner

A. I. M. E. Publications

TITLE AUTHOR
Contents of 1931 Volumes  
Abstracts of Papers Published by the Institute during 1931  
List of A. I. M. E. Technical Publicatins, 1931  

INDEX

TITLE AUTHOR
Index (Transactions and other A. I. M. E. Publications for 1931)