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COMMITTEE IN CHARGE SPENCER PENROSE, Chairman A. E. CARLTON, Chairman Finance Committee GEORGE M. TAYLOR, Vice-Chairman J. DAWSON HAWKINS, Secretary DENVER Arrangement DAVE G. MILLER FRANK BULKLEY GEO. E. COLLINS Entertainment F. H. BOSTWICK F. E. SHEPARD HOWLAND BANCROFT B. P. MORSE J. G. PERRY Finance T. B. STEARNS RICHARD A. PARKER T. B. BURBRIDGE

Jan 7, 1918

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Jan 1, 1908

ALMOST all the hazards productive of accidents are present in churn drill operation-exposed electrical cables, open machinery, moving parts located overhead, exposure to weather, and movement of heavy machinery-all are part of the job. But, a check list of danger spots and full use of countermeasures will produce maximum safety here, as on any other operation.

Jan 8, 1953

By Robert W. Hunt

At the Atlanta Meeting of the Institute, October, 1895, I had the honor of presenting a paper on " Specifications for Steel Rails of Heavy Sections Manufactured West of the Alleghenies,"* in which, reasoning from the experience of Western railroads with the heavier-sectioned steel rails, I called atten-

Jan 1, 1898

Jan 1, 1935

Map

Jan 1, 1944

Jan 1, 1910

By M. Oka, C. M. Wayman

It has been known for some time1 that (110)b twinning is possible in bct martensite.* Any plane of the form (110) not parallel to the fourfold axis of tetra-

Jan 1, 1969

Jan 1, 1935

By S. H. Ash

lowest fatal injury rate in history conferences stress selling worker on safety international safety conference beneficial

Jan 2, 1951

Jan 1, 1913

Jan 1, 1952

Mining Methods J. HURRAY RIDDELL,Chariman Guy N. BJORGE, Vice- Chairnan ROLAND D. BANKS, Secretary Alluvial Mining CLINTON BERNARD O. B. PERRY BENERE H. GRANT C. M. ROMANOWITZ Open-Cut Mining Iron G. E. DIERL P. G. HARRISON EARL E. HUNNER

Jan 1, 1939

By Rex B. McLellan, W. A. Oates

FROM a consideration of the application of the Gibbs-Duhem equation to multicomponent systems arken' derived the following equation applying to dilute solutions of a solute, 2, dissolved in a binary solution, 1-3:

Jan 1, 1969