*BURDEN, I. TOWNSEND,

*BURDEN, JAMES A.,

†BURKE, M. D., .

BURNHAM, WM.,

Troy, N. Y. Troy, N. Y.

*CALDWELL,, W. B., JR., *CAMERON, J. G. M., *CAMERON, JAMES R., *CAMPBELL, CHARLES, †CANFIELD, A. Cass, *CANFIELD, E., .

*CANFIELD, FRED. A.,
*CARNEGIE, THOMAS M.,
*CARPENTER, S. M.,
*CARSON, J. P.,

*CARTER, FRANK,
*CASE, WILLIAM H.,
*CHAMBERLAIN, H. S.,
*CHAMPIN, H.,

*CHANCE, HI. MARTYN,
*CHERRY, WILLIAM S.,
*CHESTER, PROF. A. H.,
*CHISHOLM, HENRY,
*CHISHOLM, WILSON B.,
*CHOUTEAU, PIERRE,

+CONSTANT, CHARLES L.,
+CONZELMAN, WM. E.,
*COOK, EDGAR S.,

*COOK, PROF. GEORGE H.,.

*COOPER, EDWARD,
†CORNELL, A. B.,

+CORNELL, GEO. B.,
*CORNING, ERASTUS,
†CORNING, FREDERICK G.,

*CORYELL, MARTIN,
*COURTIS, W. M.,
*Cox, PROF. E. T.,
*COXE, ECKLEY B.,
*COXE, W. E. C.,

*CRAFTS, WAlter,

*CRAWFORD, HUGH A.,

*CRAWFORD, JOHN J., *CREMER, J. H.,.

*CRESSON, DR. CHARLES M.,

*CROWTHER, BENJAMIN,

*CROXTON, SAMUEL W.,

.

410 Walnut Street, Philadelphia. 564 Camp Street, New Orleans, La. Ore Knob, Ashe Co., N. C.

P. O. Box 599, Salt Lake City, Utah.
Lehigh Zinc Works, Bethlehem, Pa.
Jersey City, N. J.

Mine La Motte, Missouri.

Care W. F. Colburn, Cincinnati, Ohio.
175 Wood Street, Pittsburgh, Pa.
School of Mines, New York City.
Nederland, Boulder Co., Colorado.
Roane Iron Co., Rockwood, Tenn.
School of Mines, New York City.
Leadville, Colorado.

Warwick Iron Co., Pottstown Pa.
State Geologist, New Brunswick, N. J.
17 Burling Slip, New York City.
Youngstown, Ohio.

46 W. Forty-eighth Street, New York City. 87 State Street, Albany, N. Y. 52 Fischerstrasse, Freiberg, Saxony.

*DU BOIS, PROF. AUG. JAY,

*DUDGEON, WILLIAM, *DUDLEY, DR. CHAS. B., *DUDLEY, P. H.,

*DUNCAN, JAMES M.,

*DURFEE, W. F.,

*DUVAL, C. J.,

†DWIGHT, GEORGE S.,

226 German St., Philadelphia. P. O. Lock Box 93, Washington, D. C.

Room 9, 132 Nassau Street, New York City. 1253 Forest Street, Cleveland, Ohio. Port Henry, Essex Co., N. Y. Edgar Thomson Steel Co., Pittsburgh, Pa. North Chicago Rolling Mill Co., Chicago, Ill. Georgetown, Colorado.

917 Clinton Street, Philadelphia.

Ashland, Schuylkill Co., Pa.

Lehigh University, Bethlehem, Pa.

Alto Pass, Union Co., Ill.

North Cornwall Furnace, Cornwall, Pa.

*HARTSHORNE, PROF. WM. D., HASEGAWA, YOSHINOSUKE,

*HAWLEY, E. S.,

*HAYDEN, W. B., *HAYDON, J. C.,

*HAYES, DR. S DANA, *HEARNE, FRANK J.,

HEARST, GEORGE,

*HEINRICH, OSWALD J., HELLEBERG, FRANK S., HEMINGRAY, WILLIAM,

*HEMPHILL, JAMES,

*HERR, H. B.,

*HERRICK, J. A., *HERRING, A.,

HERRON, CAMPBELL B., *HEWETT, GEORGE C., *HEWITT, ABRAM S., †HILDRETH, WALTER E., *HILL, JOHN W., *HILL, LESLIE C., *HILLMAN, JOHN H., *HILLMAN, THOMAS T. *HIMROD, CHARLES, *HOFFMAN, JOHN W., *HOLBROOK, F. N., .

HOLBROOK, Levi, . *HOLLEY, A. L.,

+HOLLIS, WILLIAM,
*HOLLOWAY, J. F., .

*HOOPER, Wм.,
*HORTON, N. W.,
*HOWE, HENRY M.,
*HUGHES, D. T.,

*HULBERT, EDWIN J.,
*HULST, NELSON P.,
*HUMPHREY, H. C.,
+HUMPHREYS, A. W.,
*HUNT, JOSEPH,

U. S. Engineer's Office, Memphis, Tenn.
P. O. Box 1397, Nashua, N. H.
Coeymans, Albany Co., N. Y.
Pittsburgh, Pa.

Irwin's Station, Westmoreland Co., Pa.
17 Burling Slip, New York City.

Flushing, Long Island, N. Y. Niles Tool Works, Hamilton, Ohio.

Bartholomew House, London, E. C., England. Tennessee Rolling Works, Lyon Co., Ky. Tennessee Rolling Works, Lyon Co., Ky. Youngstown, Ohio.

208 South Fourth Street, Philadelphia. 7 Jefferson Street, Brooklyn, N. Y. P. O. Box, 536, New York City. 239 Broadway, New York City. 195 Amity Street, Brooklyn, N. Y. Cleveland, Ohio. Ticonderoga, N. Y. 21 Park Row, New York City. 20 First Street, Troy, N. Y. Nevada City, Cal. Middletown, Conn. Milwaukee, Wis.

113 Walnut Street, Philadelphia.

42 Pine Street, New York City.

Catasauqua, Pa.