Volume 30

Title Page

Preface

Contents

Officers

List of the Meetings

Publications

Rules

Secretary's Note

PROCEEDINGS OF MEETINGS

MEETING	DATE
Washington (Annual)	February, 1900
Canadian	August, 1900

PAPERS:

WASHINGTON MEETING February, 1900

TITLE	AUTHOR
The Work of the United States Geological Survey in Relation to the Mineral Resources of the United States	Charles D. Walcott
Some Principles Controlling the Deposition of Ores	C.R. Van Hise
The Secondary Enrichment of Ore-Deposits	S.F. Emmons
Hydrographic Investigations of the U. S. Geological Survey in their Relation to Mining	F.H. Newell
A Peculiar Clastic Dike near Ouray, Colorado, and its Associated Deposit of Silver Ore	F.L. Ransome
Some Notes on the Nome Gold Region of Alaska	F.C. Schrader and Alfred H. Brooks
Notes on the Gold-Mines of Zaruma, Ecuador	J. Ralph Finlay
The Coal-Fields Around Tsê Chou, Shansi, China	Noah Fields Drake
Gold-Ores of the Black Hills, South Dakota	H.M. Chance
A New Method for Working Deep Coal-Beds	H.M. Chance
Gruson Rotating Turrets	T. Guilford Smith
The Roller-Pallet System for the Manufacture of Bricks	Clemens Catesby Jones
Further Notes on Elimination of Impurities from Copper in Refining and Converting	Edward Keller
Note on the Plate-Amalgamation of Gold and Silver	E.A.H. Tays
A Device for Sampling Pig-Iron	Porter W. Shimer
Origin and Classification of Ore-Deposits	Charles R. Keyes
The Clealum Iron-Ores, Washington	George Otis Smith and Bailey Willis
The Cripple Creek Volcano	T.A. Rickard
Geological Relations of the Iron-Ores in the Cartersville District, Georgia	C. Willard Hayes
An Examination of the Ores of the Republic Gold-Mine, Washington	T.M. Chatard and Cabell Whitehead
The Enrichment of Gold and Silver Veins	Walter Harvey Weed
Types of Copper-Deposits in the Southern United States	Walter Harvey Weed
Distribution of the World's Production of Pig-Iron	John Birkinbine
Hydraulic Pumping-Plant on the Snake River, Idaho, for Power, Irrigation and the Treatment, of Gold Sands	John Birkinbine
A Peculiar Siliceous Efflorescence upon Pig-Iron	B.F. Fackenthal Jr.
The Assay of Copper-Materials for Gold and Silver	L.D. Godshall
Further Notes on the Bertrand-Thiel Process	Joseph Hartshorne
Metasomatic Processes in Fissure-Veins	Waldemar Lindgeen
Notes on the Occurrence of Platinum in North America	David T. Day

CANADIAN MEETING August, 1900

TITLE	AUTHOR
Signal-Device for Mines	C.S. Herzig
The Oil-Bearing Shales of the Coast of Brazil	John C. Branner
Experiments Regarding the Influence of Silica on the Loss of Silver in Scorification	Lester Strauss
Coal Outcrops	Charles Catlett
Notes on the Compressed-Air Haulage-Plant at No. 6 Colliery of the Susquehanna Coal Company, Glen Lyon, Pennsylvania	J.H. Bowden
The Protection of Blast-Furnace Linings	S.S. Hartranft
A Mining Survey	J.F. Wilkinson
The Telluride-Ores of Cripple Creek and Kalgoorlie	T.A. Rickard
The Influence of Silicon and Sulphur on the Condition of Carbon in Cast-Iron	Henry M. Howe
The Micro-Structure and Physical Properties of Cast-Iron, as Affected by Heat- Treatment, Especially in the Manufacture of Malleable Cast-Iron	A.T. Child and W.P. Heineken
An Occurrence of Limburgite in the Cripple Creek District	E.A. Stevens
Pyritic Smelting in the Black Hills	Franklin R. Carpenter
A Method for Obtaining the Volume of Small Drifts and Working-Places, Where it is Impossible to Use a Transit	C.S. Herzig
The Evolution of Mine-Surveying Instruments - Continued Discussion Alfred C. Young, Frank Owen and R.W. Raymond
History of Solar Surveying Instruments	J.B. Davis
The Properties of Brass Made from Copper Containing Sub-oxide, with Observations of the Effect of Oxygen on Copper	Erwin S. Sperry
The Colorimetric Assay of Copper	J.D. Audley Smith
The Explosion at the Red-Ash Colliery, Fayette County, West Virginia	W.N. Page
Deep-Level Shafts on the Witwatersrand, with Remarks on a Method of Working the Greatest Number of Deep-Level Mines with the Fewest Possible Shafts	Thomas Haight Leggett
The Iron-Mines of Hartville, Wyoming	H.M. Chance
The Indicator Vein, Ballarat, Australia	T.A. Rickard
The Testing of Winding-Ropes in the Province of Anhalt, Germany	Frank H. Probert
The Geology and Vein-Phenomena of Arizona	Dr. Theo B. Comstock

CALIFORNIA MEETING September, 1899

TITLE	AUTHOR
The Electromotive Force of Metals in Cyanide Solutions	S.B. Christy

DISCUSSIONS

TITLE	AUTHOR
Of Mr. Scott's paper on the Evolution of Mine-Surveying Instruments (continued from vols. xxviii, 679: xxix, 931; xxx, 783. Secretary's Note, 1105)
Of Mr. Catlett's paper on Coal-Outcrops
Of Mr. Herzig's paper on a Method for Obtaining the Volume of Small Drifts and Working-Places, Where it is Impossible to Use a Transit
Of Mr. Chance's paper on a New Method for Working Deep Coal-Beds
Of the paper of Messrs. Smith and Willis on the Clealum Iron-Ores, Washington
Of Mr. Fackenthal's paper on a Peculiar Siliceous Efflorescence upon Pig-Iron
Of Mr. J. D. Audley Smith's paper on the Colorimetric Assay of Copper
Of Mr. Godshall's paper on the Assay of Copper-Materials for Gold and Silver
Of Mr. Carpenter's paper on Pyritic Smelting in the Black Hills
Of Mr. Keller's paper on the Elimination of Impurities from Copper Mattes in the Reverberatory and Converter

INDEX

TITLE	AUTHOR
Index