Charles Freeman Jackson / Clifford Cook Furnas / Eugene Delos Gardner / Harold Putnam Greenwald / L. C. Ilsley / Percy Nicholls / Simon Harry Ash / William Waugh Adams / Alva Britt Hooker / Charles Warren Staples / John Ballantine Knaebel / John Frederick Johnson / Joseph Holbrook Rankin / Earl Jeffries Coggeshall

OSU:32435026701235

Cables

Carl Ernest Reistle / Charles Freeman Jackson / George Samuel Rice / George St. John Perrott / Kenneth Keith Kelley / Simon Harry Ash / Wilfred Charles Furness Shepherd / William Waugh Adams / Harold Putnam Greenwald / John Ballantine Knaebel / L. E. Geyer / Noah Arthur Tolch / Henry C. Howarth / L. Chenoweth

OSU:32435026701243

Alkanes

Simon Harry Ash

UOM:39015095084375

Coal mines and mining

Daniel Harrington / Simon Harry Ash

UIUC:30112101024443

Accidents

Ernest J. Gleim / Hilary Breton Brunot / James Patrick Coughlin / Sara Jeannette Davenport / Seth T. Reese / Simon Harry Ash / G. G. Morgis / H. B. Link / Robert Sloan James / Virginia E. Wrenn / Elizabeth J. Reid / W. M. Romischer

OSU:32435026700997

Air

Simon Harry Ash

UOM:39015086485474

Coal mines and mining

Simon Harry Ash / R. W. Smith

UOM:39015077572348

Coal mines and mining

Simon Harry Ash

UOM:39015077576414

Blasting

Simon Harry Ash / L. L. Naus

UOM:39015074126981

Diesel locomotives

American Standards Association / Forrest Theodore Moyer / Ned H. Snyder / Russell Everett Morgan / Simon Harry Ash / G. D. Jones / John Ferdinand Barkley / Sebastian J. Aresco / W. L. Eaton / Ralph H. Whaite / Virginia E. Wrenn

OSU:32435026701029

Anthracite coal

Simon Harry Ash / Emory Smith

UOM:39015077569674

Mine safety

Simon Harry Ash / Rudolf H. Kudlich

UOM:39015077567744

Mine safety

Simon Harry Ash

UOM:39015078533612

Anthracite coal

Simon Harry Ash

UIUC:30112101025192

Dredges

Charles Thomas Holland / Everett Perry Carman / George Samuel Rice / H. B. Jensen / Norman L. Wimmler / Oliver Caldwell Ralston / Seth T. Reese / Simon Harry Ash / William Marsh Myers / Carl Otto Anderson / Edward Thomas / H. B. Link / H. D. Kynor / Naomi W. Kearney / Ralph H. Whaite / Royd Ray Sayers / W. I. Barnet / Elizabeth A. Miller / W. I. R. Murphy

OSU:32435026701003

Anthracite coal

George Wallace Grove / Simon Harry Ash / Ernest John Ristedt

UOM:39015077562315

Mine haulage

Simon Harry Ash / Carl R. Rankin

UOM:39015077572355

Hetch Hetchy Reservoir (Calif.)

Everett Perry Carman / Hiram Brown Humphrey / Robert L. Beatty / Seth T. Reese / Simon Harry Ash / Theron Albert Klinefelter / United States. Bureau of Mines / E. G. Graf / Hazel J. Stratton / Henry A. Dierks / Howard Phillips Hamlin / Naomi W. Kearney / Virginia E. Wrenn / Elizabeth J. Reid / P. S. Miller / Richard Clarke Corey

OSU:32435067621433

Anthracite coal

Simon Harry Ash

PSU:000059707578

Anthracite coal

Arno Carl Fieldner / Daniel Harrington / Ralph Emmet Brewer / William Waugh Adams / L. E. Geyer / Simon Harry Ash / Virginia E. Wrenn / William Elmer Rice / Harry Elston Moran / M. G. Parry

OSU:32435026701128

Accidents

Simon Harry Ash

UOM:39015095083716

Coal mines and mining

Simon Harry Ash / James Westfield

UOM:39015074127658

Anthracite coal

Arno Carl Fieldner / Charles Holmes Herty / Craig Miller Bouton / Edmund Spriggs Leaver / Elmer Vernon Potter / Frederick William Lee / George Leslie Oldright / Gustav Wade / Irwin Roman / J. Wallace Joyce / James Washington Paul / John D. Sullivan / Paul Salmon Roller / Robert Dewey Currie / United States. Bureau of Mines / Al Foster / Max Wilhelm Von Bernewitz

LCCN:31027230

Bornite

Alva Britt Hooker / Daniel Harrington / Edward H. Denny / George Wallace Grove / United States. Bureau of Mines / William Joseph Fene / Simon Harry Ash / Ernest John Ristedt

LCCN:40026380

Bituminous coal mines and mining

Simon Harry Ash / R. W. Smith

OCLC:31771190

Coal mines and mining

OCLC:911659008

Simon Harry Ash / Carl R. Rankin

OCLC:31733752

Hetch Hetchy Reservoir (Calif.)

Ernest J. Gleim / Hilary Breton Brunot / James Patrick Coughlin / Sara Jeannette Davenport / Seth T. Reese / Simon Harry Ash / G. G. Morgis / H. B. Link / Robert Sloan James / Virginia E. Wrenn / Elizabeth J. Reid / W. M. Romischer

OSU:32435026700997

Air

United States. Bureau of Mines

OCLC:1139511808

Barite

United States. Bureau of Mines / Eugene Delos Gardner

OCLC:639826702