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Copper Mining In South America, Charles Kenneth Rose Jan 1938

Copper Mining In South America, Charles Kenneth Rose

Professional Degree Theses

"The Morococha district is situated in the Andes of Central Peru, Department of Junin, four miles east of the crest of the Western Cordillera, which there forms the Continental Divide. The town of Morococha is at an elevation of 14,800 feet and is connected by rail with Callao, the port of Lima, ninety miles to the west, and with La Oroya, the smelting center, thirteen miles to the east. The Peruvian Central Railway ascends from Lima along the valley of the Rio Rimac to Ticlio (15,665 feet) where it tunnels through the Divide and descends the Yauli Valley to La …


Conveyor Mining In The Thin Vein Coal Fields At Excelsior, Arkansas, Bernard Degen Boyd Jan 1938

Conveyor Mining In The Thin Vein Coal Fields At Excelsior, Arkansas, Bernard Degen Boyd

Professional Degree Theses

"From the results obtained after a year and a half of operation using the long face system of conveyor mining in our thin seam of coal, four decided advantages over the old system of room and pillar work with wide rooms have been proven: 1. Operations are concentrated in small sections, thereby permitting larger tonnages to be loaded. 2. One hundred per cent extraction of the vein is obtained (with the exception of main slope pillars) which prolongs the life of the mine. 3. The ventilation of this gaseous vein is simplified. 4. Production costs are reduced"--page 15.


How South-West Wisconsin Tailing Piles Can Be Worked At A Profit, Gerald Henry Pett Jan 1938

How South-West Wisconsin Tailing Piles Can Be Worked At A Profit, Gerald Henry Pett

Professional Degree Theses

"It was not until the Flotation Process was introduced in this S.W. Wisconsin zinc district that the writer was convinced that some of the tailing piles here could be worked at a profit. In 1928, the Badger Zinc Company built a 120 ton Flotation Plant about two miles north-east of Linden. It was after the second visit to the plant that the writer learned the above company was making a profit of a 5% zinc ore with very little lead and with a low market price for the finished product, namely $30.00 per ton for a 60% zinc concentrate...the body …


Superstructure Costs Of Short Span Self-Anchored Suspension Bridges, David J. Peery Jan 1938

Superstructure Costs Of Short Span Self-Anchored Suspension Bridges, David J. Peery

Professional Degree Theses

"Complete designs and estimates for three self-anchored highway suspension bridges are made in this paper. The span lengths investigated are commonly considered to be shorter than the economic limit for suspension bridges. Simple truss and cantilever bridges are usually considered the most economic types for these span lengths"--Synopsis, page 1.


Application Of Small-Scale, Movable-Bed River Models To Channel Improvement Studies Of The Middle Mississippi River, Eugene H. Woodman Jan 1938

Application Of Small-Scale, Movable-Bed River Models To Channel Improvement Studies Of The Middle Mississippi River, Eugene H. Woodman

Professional Degree Theses

"This paper deals primarily with the use of small-scale models in the study of plans for improving the channel for navigation in several reaches of the Middle Mississippi River. However, it was considered expedient to include a discussion of hydraulic model experimentation in general before dealing with specific cases, in order that the reader might obtain the greatest possible satisfaction from the discussion.

The first part of this paper includes: a discussion of the theory of models, wherein the value and utility of models are demonstrated; the application of models to hydraulic problems, including the requirements for a model to …


Hydrography Of The Larger Springs Of The Ozark Region Of Missouri, Warwick Lewis Doll Jan 1938

Hydrography Of The Larger Springs Of The Ozark Region Of Missouri, Warwick Lewis Doll

Professional Degree Theses

"This thesis is based upon a study of the larger springs of the Ozark Region of Missouri and is designed to answer many requests for information about the large springs.

Special studies were made to determine the probable location and approximate area of the drainage areas of the large springs (previous writers have referred to the drainage areas as being “very large" or "enormous", apparently, without any very definite idea as to the extent or the drainage areas). The average run-off per square mile from the assumed drainage area, herein called the "spring factor", was determined for the largest springs. …


Oil And Gas Resources, Jackson County, Missouri, Joseph Robinson Clair Jan 1938

Oil And Gas Resources, Jackson County, Missouri, Joseph Robinson Clair

Masters Theses

"The oil and gas production in Jackson County, though rather small, is nevertheless of considerable economic importance. A portion of the county has been rather thoroughly developed but the remainder has had little prospecting. In order to aid further development in the region the Missouri Geological Survey engaged in the mapping of all the known wells in the county as a basis for preparing a structural contour map of the area. In addition, a member of the Survey staff is stationed permanently in Kansas City to give assistance to the operators in the region and to collect the logs of …


The Missouri Miner, December 15, 1937 Dec 1937

The Missouri Miner, December 15, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, December 08, 1937 Dec 1937

The Missouri Miner, December 08, 1937

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, December 1937, Miner Alumni Association Dec 1937

Missouri S&T Magazine, December 1937, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


The Missouri Miner, December 01, 1937 Dec 1937

The Missouri Miner, December 01, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, November 24, 1937 Nov 1937

The Missouri Miner, November 24, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, November 10, 1937 Nov 1937

The Missouri Miner, November 10, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, November 03, 1937 Nov 1937

The Missouri Miner, November 03, 1937

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, November 1937, Miner Alumni Association Nov 1937

Missouri S&T Magazine, November 1937, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


The Missouri Miner, October 27, 1937 Oct 1937

The Missouri Miner, October 27, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 20, 1937 Oct 1937

The Missouri Miner, October 20, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 13, 1937 Oct 1937

The Missouri Miner, October 13, 1937

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, October 1937, Miner Alumni Association Oct 1937

Missouri S&T Magazine, October 1937, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


The Missouri Miner, September 29, 1937 Sep 1937

The Missouri Miner, September 29, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, September 22, 1937 Sep 1937

The Missouri Miner, September 22, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, September 15, 1937 Sep 1937

The Missouri Miner, September 15, 1937

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, May 28, 1937, Miner Alumni Association May 1937

Missouri S&T Magazine, May 28, 1937, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


The Missouri Miner, May 26, 1937 May 1937

The Missouri Miner, May 26, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, May 19, 1937 May 1937

The Missouri Miner, May 19, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, May 12, 1937 May 1937

The Missouri Miner, May 12, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, May 05, 1937 May 1937

The Missouri Miner, May 05, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 28, 1937 Apr 1937

The Missouri Miner, April 28, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 21, 1937 Apr 1937

The Missouri Miner, April 21, 1937

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 14, 1937 Apr 1937

The Missouri Miner, April 14, 1937

The Missouri Miner Newspaper

No abstract provided.