Search Documents
Search Again
Search Again
Refine Search
Refine Search
- Relevance
- Most Recent
- Alphabetically
Sort by
- Relevance
- Most Recent
- Alphabetically
-
The Mineral Resources Of Korea.By Hallet R. Robbins
KOREA, the ancient " Hermit Kingdom," is a peninsula jutting out from the coast of eastern Asia. By the natives it is called " Chosen," which, translated, means " Land of the Morning Calm." It lies be
Jan 7, 1908
-
Primary Gold In A Colorado Granite.By John B. Hastings
TEN miles from Hartsel, near Antelope springs, in Park county, Colorado, there is a large area of unconsolidated lake beds, which are interesting because at least a part of the lacustrine sands contai
Jan 5, 1908
-
The Mechanical Preparation Of Ores' In Sardinia.By ERJIINICI FERRARIS
1. HISTORICAL REVIEW AND INTRODUCTION. THE development of the mining industry in Sardinia dates from the application of the minim law of 1859, which, following the example of the French mining law of
Jan 5, 1908
-
The Evergreen Copper-Deposit, Colorado.By Etienne A. Ritter
INTRODUCTION. THE Evergreen mine, located at Apex, in the northern part of Gilpin county, Colorado, has opened a very peculiar and interesting copper-deposit, in which both bornite and chalcopyrite o
Jan 1, 1908
-
New York Paper - Deutschman's Cave, Near Glacier, B. C., CanadaBy W. S. Ayres
I. Introduction. This cavern was discovered Oct. 32,1904, by Mr. Charles 8. Deutschman, in company with whom I made, May 29 to June 3,1905, at the request of Mr. Howard Douglas, Superintendent of t
Jan 1, 1908
-
-
Discussion - Of Mr. Howe's Paper on Piping and Segregation in Steel Ingots (see p. 3)Secretary's Note.—M. Beutter's introductory remarks, being simply a resume of Prof. Hone's paper, with a disclaimer of the intention to criticise it, have been omitted, and the remainde
Jan 1, 1908
-
Geology and Mining of the Tin-Deposits of Cape Prince of Wales, AlaskaBy Albert Hill Fay
IN giving a sketch of the geology and mining of the tin-deposits of Cape Prince of Wales, a short description of the geographic and climatic conditions may be of special interest on account of this be
Sep 1, 1907
-
The Present Source and Uses of VanadiumBy J. Kent Smith
VANADIUM is generally spoken of as a rare element; but, even in the light of our resources as known a couple of years ago, this description could be accepted in a qualified sense only. In fact, vanadi
Sep 1, 1907
-
Blow-Holes in Steel IngotsBy E. von Maltitz
IN his highly interesting paper on "Piping and Segregation in Steel Ingots,"1 Prof. Howe emphasizes the effect of successive phases of internal pressure in the ingot in the evolution of gas, and the
Sep 1, 1907
-
The Influence of the Conditions of Casting on Piping and Segregation, as Shown by Means of Wax IngotsBy H. M. Howe
THIS paper presents an experimental verification of some of the predictions made by one of us' concerning 'the influence of certain conditions of casting upon the size and position of the pi
Jul 1, 1907
-
The Vein-System of the Standard Mine, Bodie, Cal.By R. Gilman Brown
INTRODUCTION. MINES are interesting by reason of what they have done for man, or of what has been done for them by nature. Not all are interesting on both scores. Many profitable mines are commonplac
Jul 1, 1907
-
Piping and Segregation in Steel IngotsBy H. M. Howe
A Discussion of the paper of Professor Howe, presented at the London Meeting, July, 1906, and printed in Bi-Monthly Bulletin, No. 14, March, 1907, pp. 169 to 274. SECRETARY'S NOTE.-M. Beutter&
Jul 1, 1907
-
Mining Operations in New York City and VicinityBy H. T. Hildage
ALTHOUGH Greater New York does not bear any resemblance to a great mining district, the mining operations that are being conducted in and about the city are both extensive and interesting in character
May 1, 1907
-
Bibliography of Injuries to Vegetation by Furnace GasesBy Persifor Frazer
1. SMOKE PREVENTION. Report of Select Committee of House of Commons (1843). Nuisance considerably abated in Leeds (Wm. Backerd, July 13, 1843, 239 pages). A synoptic index, p. 211, gives, in alphabet
May 1, 1907
-
Search for the Causes of Injury to Vegetation in an Urban Villa Near a Large Industrial EstablishmentBy Persifor Frazer
INTRODUCTION For various reasons I have not specified the locality where the research indicated in the following pages was undertaken. It will suffice to say that it was on the grounds of a villa onc
May 1, 1907
-
A Study in Refining and Overpoling Electrolytic CopperBy R. HAYDEN, H. B. HALLOWELL, H. O. Hofman
THE object of refining copper in the reverberatory furnace is to obtain a metal which will have the highest attainable degree of malleability, ductility and electric conductivity, and present at the s
Mar 1, 1907
-
The Ore-Deposits of the Joplin Region, MissouriBy F. L. Clerc
THE lead and zinc region of SW. Missouri is interesting, not only by reason of the value of its output, which ranges in the neighborhood of ten million dollars a year, but even more because of the fac
Mar 1, 1907
-
Piping and Segregation in Steel Ingots - Preliminary PaperBy HENRY M. HOWEL
1. Introduction.-The first part of this papers treats of the causes and the restraining of piping in steel ingots; the second& considers the causes and the restraining of -segregation; and the third p
Mar 1, 1907
-
Secrecy in the ArtsBy James Douglas
THOUGH liberality is not supposed to be a prominent trait of the Scottish character, Canada owes to a Scotchman, Sir Wm. Macdonald, more than to any other of its people, not only wise ideas, but pecun
Jan 9, 1907