TECHNICAL COMMITTEES

JOSEPH W. RICHARDS, Chairman.

J. E. JOHNSON, JR., Vice-Chairman.

ARTHUR S. CALLEN, Secretary, 453 Chestnut St., So. Bethlehem, Pa.

WILLIAM N. BEST, Vice-Chairman.
WILLIAM B. PHILLIPS, Vice-Chairman.

DAVID T. DAY, Vice-Chairman.
MARK L. REQUA, Vice-Chairman.

LEONARD WALDO, Secretary, 49 Wall St., New York, N. Y.

FREDERICK W. C. WHYTE, Vice-Chairman.

WILLIAM E. FOHL, Secretary, Farmers' Bank Bldg., Pittsburgh, Pa.

Precious and Base Metals

CHARLES W. GOODALE, Chairman.

L. D. RICKETTS, Vice-Chairman.

ROBERT C. GEMMELL, Vice-Chairman.

DARSIE C. BARD, Secretary, Montana State School of Mines, Butte, Mont.

CHARLES P. BERKEY, Vice-Chairman.
GEORGE F. KUNZ, Vice-Chairman.

WALTER M. STEIN,
JOSEPH STRUTHERS,
WILLIS R. WHITNEY.

H. J. SEAMAN, Vice-Chairman.
EDWARD W. PARKER, Vice-Chairman.

WILLIAM C. PHALEN, Secretary, U. S. Geological Survey, Washington, D. C.

CHARLES E. LOCKE, Secretary, Mass. Institute of Technology, Boston, Mass.

EARL S. BARDWELL,

H. K. BURCH,

CHARLES BUTTERS,

GELASIO CAETANI,

WILLIAM A. CALDECOTT,

JOHN M. CALLOW,

CHARLES A. CHASE,

DAVID COLE,
JOHN V. N. DORR,
ARTHUR S. DWIGHT,

H. A. GUESS,

H. C. HOOVER,
HENRY KRUMB,
FREDERICK LAIST,
C. B. LAKENAN,
W. P. LASS,

CHARLES W. MERRILL,
HENRY S. MUNROE,
E. H. NUTTER,

C. Q. PAYNE,

JOHN B. PORTER,
LEWIS G. ROWAND,
E. A. C. SMITH,

T. B. STEARNS,

WALTER G. SWART,

ARTHUR THACHER,

GEORGE D. VAN ARSDALE,

BULKELEY WELLS,

ALBERT E. WIGGIN,

GEORGE H. WYMAN, JR.

Mining Law

HORACE V. WINCHELL, Chairman.

CURTIS H. LINDLEY, Vice-Chairman.

CORNELIUS F. KELLEY, Vice-Chairman.

JOHN W. FINCH, Secretary, 730 Symes Bldg., Denver, Colo.

ALBERT BURCH,

J. MURRAY CLARK,
WILL L. CLARK,

C. LORIMER COLBURN,
COURTENAY DEKALB,
CHARLES W. GOODALE,

FREDERICK T. GREENE,
EDWIN O. HOLTER,
EDMUND B. KIRBY,

MARK L. REQUA,
GEORGE W. RITER,

WILLIAM SCALLON,
CHARLES H. SHAMEL,
FRANK L. SIZER,
JOEL F. VAILE,
WALTER H. WILEY.

Safety and Sanitation

ARTHUR WILLIAMS, Chairman.

HOWARD N. EAVENSON, Vice-Chairman.

E. MALTBY SHIPP, Secretary, 2 Rector St., New York, N. Y.

GEORGE D. BARRON,

WILLIAM L. BELL,
JAMES L. BRUCE,
CHARLES F. CHANDLER,
WILLIAM L. CLARK,
GEORGE G. CRAWFORD,
R. W. DEACON,
WALTER DOUGLAS,
THEODORE DWIGHT,

CHARLES T. FAIRBAIRN,
CHARLES W. GOODALE,
SIDNEY J. JENNINGS,
ROBERT A. KINZIE,
CORNELIUS B. LAKENAN,

JOHN LANGTON,
JOHN LLOYD,

SOLOMON LEFEVRE,

WILLIAM W. MEIN,

C. P. NEILL,

JAMES B. RISQUE,

FRANCIS P. SINN,

WILLIAM D. THORNTON,

WILLIAM R. WALKER,

C. W. WHITLEY,

HENRY A. J. WILKENS,

DWIGHT E. WOODBRIDGE.