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Description of Edison-Porter steam dynamo, T. A. Edison, C. T. Porter

III 218

Designing, intuition in......

VIII. 458

Detent for drum-spring in indicator

VII. 498

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Determination of costs of steam and power, H. R. Towne...

Determination of heating surface in ventilating flues, W. P. Trowbridge

Device for friction of valves....

Diagram of friction of lubricating oils....

VIII. 617

III. 69

IV. 154

IV. 338

I. 76, 77

I. 82

I. 84

Diagram of study at Worcester..

Diagrams of specific heat..

Diameters of cone and step pulleys, C. A. Smith

Diametral pitch in worm-gearing.

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Dickerson boilers..

VI. 595

PAGE

Die, a novel hammer-head and, Wm. Hewitt...

Differential manometer,.....

DINGEE, W. W., disc., estimating the cost of foundry work..

VI. 77

II. 98

IX. 395

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Discussion of the adoption by the Society of the report of the committee

VIII. 426

VII. 824

...VII. 408, 419

on boiler trials..

VI. 877

Discussion of the report and code for a standard method for conducting

boiler trials..

VI. 314

Discussion of indicator cards of Worthington engine..

III. 135

Disengagement area in boilers.

I. 270

Displacement and area curves of fish, H. de B. Parsons..

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Distribution of steam in the Strong locomotive, F. W. Dean..
Distribution of internal friction in engines, R. H. Thurston..

.IX. 556; X. 687

X. 110

Divergencies in flange diameters of pumps, valves, etc., P. A. Sangui-
netti...

Diverging tubes and nozzles, best form of, A. F. Nagle.......

Divine, James, on rope transmissions...

Dixwell experiments....

DOANE, W. H., disc., experiments on belting..

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DODGE, JAMES M., a new method of stocking and reloading coal....

disc., belts as grain conveyers.

IX. 270

VI. 412

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Drawing boards, recent improvements in, Theo. Bergner...

VI. 224

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Drawing-paper, contraction and expansion of..

Drawings, a new method of keeping mechanical, C. T. Porter...

DREDGE, JAMES, gas lighting by incandescence.

Dredging machinery, recent improvements in.

Drifting in iron boiler work..

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Drill, a new rock, F. A. Halsey..

VIII. 301

II. 560

VIII. 663

VIII. 122

VIII. 123

VIII. 114

IV. 145

IV. 418

VI. 71

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Drop press, pressure obtainable by use of, R. H. Thurston..
Drop presses, efficiency of..

V. 53

V. 54

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DU FAUR, A. F., expansion of steam and water without transfer of

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DURFEE, W. F., mechanism for manoeuvring clutch couplings.

balanced vertical engines...

VL 403

IV. 311

IV. 368

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66

DURFEE, W. F., experimental steel works at Wyandotte..

disc., adoption of code for boiler trials...

.....

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PAGE

VI. 40

VI. 880

VII. 616

VII. 804

VII. 78

IV. 115

IV. 310
VII. 820

VII. 254 to 270

VII. 390

VI. 859

VII. 387

VII. 393

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drilling holes in glass .

economical point of cut-off..

engineer as an economist

flow of metals..

flying rope..

....

foundations on yielding earth

mechanical circulation in boilers..

Meigs Elevated R. R..

natural gas....

non-conductors of heat.... . . .

packing for pneumatic engine..
perfect screw ....

pressures and speeds of journals.
properties of metals and alloys..
rolled steel car-wheels.....
shell and water-tube boilers..
smoke-preventing furnaces.

..II. 195, 199

VII. 476

.VI. 659-664

VIII. 322

VII. 802

VII. 815

VII. 121

V. 367

II. 36

VII. 382

V. 256

.VI. 850-855

V. 147

II. 298

VI. 586, 607
VII. 791

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sound casting.....

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.VI. 104, 105, 108

VII. 398

VII. 729

testing small engines...

VII. 381

VII. 160

training of a dynamic engineer...

the milling machine as a substitute for the

VII. 776

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PAGE

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DUTTON, C, S., disc., tractive forces of leather belts... ..

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X. 772
X. 820

X. 830

IX. 476

VII. 742

.VII. 765, 768

VII. 550

VII. 274

VII. 631

floating....

IX. 214

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improved form of balanced, S. S. & W. O. Webber...

Webber's.....

IX. 303

IV. 227

VIII. 532

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experiments involving the flow of metale, W. E. Ward..

VI. 655

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ECKART, W. R., chronograph for engineering purposes.

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Economical method of heating and ventilating an office and warehouse

building, H. I. Snell.....

IX. 99

Economical point of cut-off in steam engines, A. R. Wolff, J. E. Denton.. II. 147, 281
Economy at different pressures of steam..

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by subdivision in operating machinery, J. L. Hornig..

IV. 233

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in lubrication of machinery, methods of, G. N. Comly.......
from high pressure....

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single engine....

of fuel in steam engines, methods for, A. Stirling.

"low speed in engines....

I. 265

I. 22

I. 22

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"ventilation by heated chimneys and by fans, W. P. Trow-

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