A

ADDIS, W H., 102
AMERICAN MACHINISTS' HANDBOOK, 69
AMERICAN STEEL TREARERS' SOCIETY, 119
AMERICAN GEAR MFRS. ASSO., 115
AUTOMATIC AND ELECTRIC FURNACES LTD., 161
ARNOLD, PROF. J. O., 167

B

BURLEIGH, R. W.
BORDEN, B.
BOKER, HERMAN & Co.
BROWN INSTRUMENT Co., 224
BROWN-LIPE-CHAPLIN Co., 121

C

CAMPBELL, H. H.
CARHART, H. A., 42
CLAYTON, C. Y., 112
CURTIS AIRPLANE Co.

E

ENGLEHARD, CHARLES, 227
ENSAW, HOWARD, 79, 95

F

FIRTH-STERLING STEEL Co., 176
FIRTH, THOMAS & SONS, 137
FOWLER, HENRY, 151

G

GILBERT & BARKER, 164, 188

H

HAYWAHD, C. R., 35
HOWE, DR. H. M., 8, 108
HOOVER STEEL BALL CO., 61
HEATHCOTE, H. L., 85
HARRIS, MATTHEW, 94
HUNTER, J. V., 192

J

JANITZKY, E. J., 119
JOHNSTON, A. B., 35
JUTHE, K. A., 1, 24, 65, 75, 79, 105, 145

L

LATROBE STEEL CO., 150, 178
LUDLUM STEEL CO., 175
LEEDS & NORTHRUP CO., 211
LYMAN, W. H., 199

M

MANSFIELD, C. A.
MIDVALE STEEL Co.
McKENNA, ROY C., 164
MOULTON, SETH A., 199

N

NILES, BEMENT, POND, 67

P

PARKER, S. W.
POOLE, C. R.

R

RAWDON, H. S., 110, 113

S

S. A. E. (SOCIETY AUTOMOTIVE ENGINEERS), 39, 46, 49, 134
SAUVEUR, ALBERT, 105, 232
SPRINGFIELD ARMORY, 78
SELLACK, T. G.
SMITH, A. J., 101
SHIRLEY, ALFRED J.

T

TAYLOR INSTRUMENT Co., 215
THUM, E. E., 12-23; 105-121.
TIEMANN, H. P., 11

U

U. S. BALL BEARING Co.
UNITED STEEL Co.
UNDERWOOD, CHARLES N.

V

VAN DE VENTER, JOHN H., 86

W

WALP, H. O., 109
WOOD, HAROLD F., 46
WHEELOCK, LOVEJOY & Co., 69