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CHARLES DILLON, is head of the de Mr. Dillon has turned his energies into a

partment of Industrial Journalism, at department of collegiate instruction which the Kansas Agricultural College. Of him is still very new. It seems rather remarkself he writes to the editors: “I do two able that so important a field of education things: work in the garden and write about should have been so long neglected as has it.”

this. He does both of these things with equal Mr. Dillon was one of the first to realize vigor and enthusiasm.

that a college is a place where something Mr. Dillon realizes the tremendous good more than mere culture is to be obtained. that the editor of the country weekly news He underpaper could do in his community if he had the stands it is a proper training. He could be a power in place for the the proper transmission of agricultural re- learning of search to the farmer. That is one of the practical purposes—though of course only one of things as the department of Industrial Journalism. well.


DR. WALSH is a vigorous advo

cate of the prevention rather than the cure of disease. This, he believes, is the true function of the physician. He devotes himself solely to writing. His strong articles in The TECHNICAL WORLD have stirred up considerable comment. Dr. Walsh has studied extensively abroad, in the great medical schools of Paris, Berlin, and Vienna.

Dr. F. C. WALSH,

Next Month's Features-See Next Page

Technical World Magazine



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Contents for May, 1912
What Steel Dividends Cost

Henry M. Hyde 246
Town Where Trusts Don't Rule

Charles Dillon 254
The Invisible Detective

C. F. Carter 259
Harnessing the Big Muddy .

Arthur Chapman 269
Cheap Homes for Working Men

Harry F. Kohr 273
Docking a Big Liner

Chester Carton 276
Mining for Tigers

Charles Frederick Holder 280
Electric Lights on the Farm

L. T. Perrill 285
Waging War on Swamp Lands

F. G. Moorhead 289 Remarkable Boy Sculptor

Lillian E. Zeh 294 Bats to Fight Mosquitoes

Robert Franklin 297 Breaking a Bridge Trust

Harlan David Smith 299 Healing With Dry Air

Dr. Alfred Gradenwitz 303 Tempting Disaster by Rail

Robert G. Skerrett 305 Government Runs Railroad to Build Biggest Dam

René Bache 311 Popular Science and Mechanics Supplement




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Technical World Magazine should be on the news-stands on the 17th of the month preceding the date of issue. Patrons unable to get the magazine on the 17th will confer a favor by notifying the Circulation Manager. News-stand patrons should instruct their News-dealer to reserve their copy of Technical World, otherwise they are likely to find the magazine "sold out.

TERMS: $1.50 a year: 75 cents for six months; 15 cents a copy. Foreign postage, $1.00 additional; Canadian postage, 50 cents additional. Notice of change of address should be given thirty days in advance to avoid missing a number.

TECHNICAL WORLD COMPANY Home Office: 58th St. and Drexel Avenue, Chicago

Eastern Office: 1702 Flatiron Building, New York

Entered at the Postoffice, Chicago, III., as second-class mail matter.



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We have been so busy conserving our forests, our water power, our Alaskan coal fields, that the vast oil area of the West has been staked out by alleged "prospectors," turned

over to “developing" companies and the eminent domain of “this libertyloving, sovereign people” has once more in another direction been exploited for private aggrandizement. Possession of any mineral claim rests upon the discovery of mineral. No rights of any kind are acquired under the law prior to such discovery. No one is entitled to a reward

for pointing out a haystack as the locus of a lost diamond. California oil

"prospectors” squatted upon the haystack—that is, the public domain—did nothing

and asked tribute of those willing to search for the jewel. Mr. Woehlke shows in this strong article how both Congress and the Department of the Interior have most signally failed in the performance

of their duty. This is one of the most powerful articles the TECHNICAL WORLD MAGAZINE has printed. It is the June leader.

Feeling the Pulse of a Skyscraper.
“Blood Will Tell.”
The Rise of Rice in Arkansas.
Four Hundred Feet in the Deep.
Raising a Vessel to Sink it Again.
Carp- The Food of Thousands.
Staying Death's Hand.
Mountain Peaks Crash to Earth.
A Handful of Engine.
Repairing Niagara Falls.
Motor-Cycles on the Farm.

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