PAGE

Prentiss, F. H., in trials of a warm-blast apparatus...
President's inaugural, 1880, R. H. Thurston...

VI. 676

I. 7

VI. 31

Press problems, power, Oberlin Smith...

Pressure of steam in marine boilers..

obtainable by the use of the drop-press, R. H. Thurston...

"lubricated surfaces...

VII. 25

VIII. 676

IX. 23

X. 482

IX. 161

VIII. 472

V. 53

VI. 104

I. 113

Hawkins..

Printing, progress in....

Hartford, May, 1881......

Altoona, 1881..

Printing-press, a plea for the, in mechanical engineering schools, J. T.`

Problem in profit-sharing, a, William Kent.

Proceedings, New York, 1880....

IX. 403

II. 439

VIII. 630

I. 1

II. 1

II. 233

Production of true crank shafts and bearings, Horace See..

Profit-sharing, a problem in, Wm. Kent....

VII. 703

IV. 65, 78

.VII. 521

VIII. 630

Profits at fixed expansion....

Progress in mechanical science, 1824-1882, F. Fraley..

Projectiles, penetration of

Projection of machine drawings..

Prolonged stress on iron, effects of, R. H. Thurston..

Promethor by Bradley...

Properties of gun steel..

PAGE

III. 281

III. 200

VIII. 588
VIII. 334
IV. 224
VII. 727

VIII. 594

Properties, physical, of metals and alloys, T. Egleston.

Propontis boilers.....

Proportioning steam cylinders, R. H. Thurston.

Proportions of cement in beton....

V. 140

VI. 577, 600

IX. 360

IV. 391

46

Pumping engines, duty trials of, J. S. Coon.

Pumps, centrifugal and reciprocating, efficiency of, S. S. Webber....

centrifugal, and their efficiencies, S. S. Webber..

for collieries....

IX. 476

II. 79

.I. 181; II.

79

VII. 598

IX. 228

IV. 220

IX. 324

Crane.....

"mills....

Punched holes in steel....

Purification of water for manufacturing and domestic purposes, T. S.

II. 308

X. 521

.IV. 417, 428

VII. 617

IV. 345

VII. 635

II. 42

VI. 702

II. 53

X. 336

VI. 808

RAE, T. W., latest method in submarine telegraph work.

II. 349

Rail cambering arrangement, Lackawanna I. & C. Co., W. K. Sea-

man.

IV. 106

Railroad bed for bridge structures, O. C. Woolson....

fan.....

IX. 232

theorem of economy of single acting engines, W. P. Trow-
bridge....

III. 236

Rapid transit and elevated railroads, F. E. Galloupe.

VII. 81

Rarefied air for fans..

VIII. 314

Rating of boilers by horse-powers for commercial purposes, Trowbridge-
Richards...

VII. 214

Ratio of expansion at maximum efficiency, R. H. Thurston..
Rational system of piston packing, S. W. Robinson.

II. 128

II. 19

Ratios of cylinders in triple expansion engines, J. M. Whitham.
RAYMOND, R. W., Holley memorial address ...

X. 576

IV. 35

RAYNAL, A. H., disc., divergencies in flange diameters

flying-rope....

lining for brake straps.

power for machine tools.
wrought-iron scrap in castings.

Raw-hide belt, tests of...

Recent improvements in drawing boards, T. W. Bergner...

dredging machinery, A. Wells Robinson.....
Reciprocating parts of high-speed engines, formulæ for, G, I. Alden ..

Reckenzaun and Redfield patents for incandescent lighting

Recommendations for pipe-fittings

Record blank for indicator diagram........

Reducing sections of bolts......

Re-enforced beton for engine foundations......

Re-entrant angles, avoidance of......

REESE, JACOB, regenerating metallurgic furnaces.

I. 178

I. 174

VI. 224
VIII. 114

VIII. 191
II. 243

II. 75

..I. 151; II. 268

VIII. 671

IV. 276

IX. 297

X. 818

IV. 395

IX. 540

I. 57

disc., a plea for the printing press in engineering

PAGE

REESE, JACOB, disc., punched and sheared edges of steel.....

IX. 732

Refrigerating machine, performance of, J. E, Denton...
Regenerating metallurgic furnaces, J. Reese.

Regenerator in air engines.....

Regulation of steam engines, note on, R. H. Thurston...

Regulator, automatic, for heating apparatus, J. T. Hawkins..
Reheating in receiver engine......

III. 89, 97

X. 792

I. 57
VII. 725

II. 338

X. 48

....

X. 69

IX. 431

I. 178

Relative economy of ventilation by heated chimneys and by fans, W. P.
Trowbridge

VII. 531

Relative efficiency of centrifugal and reciprocating pumps, S. S. Web-
ber....

VII. 598

Relative value of water gas and Siemens gas for melting in the O. H.

Report of a committee on a standard method of steam boiler trials.....

VI. 256

a series of trials of a warm-blast apparatus, J. T. Hoadley.
Report of committee on finance (XIIth meeting).

VI. 676

U. S. test commission....VI. 13; VII. 413; VIII. 16
uniform methods of tests .....VII. 21, 413; IX.
U. S. commission to test materials

XIth 66

on natural gas, appendix.

on revision of rules...

of test on upright boilers at Roxbury Pumping Sta., J. S. Coon

V. 16, 164

III. 290

II. 401

IX. 658

VII. 112

I. 54

II. 9

II. 411

III. 21

IV. 33

IV. 207

V. 31

V. 171

VI. 5

VI. 28

VII. 22

VII 419

.VIII. 23, 356

on test commission of Engineers' Society of Western Pa.

IX. 19, 356

IV. 199

III. 107

Result of a test of a warm-blast apparatus at the Pacific Mills.. .VI. 732 et seq.