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26. Folding and measuring cloth,
27. Mortise latch for doors,

28. Caboose, or cooking stove,

29. Self-acting feeders for steam boilers,
30. Rectifying spirits,

31. Ovens for cooking-stoves, &c., .

Hiram Dellaney,
Horatio Allen,

Jordan L. Mott,
Thomas Murdock,
Joel Spaulding,
Leonard Foster,
Michael Rocher,
Ethan Campbell,
Augustus V. H. Webb,
Samuel B. Spaulding,

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Artificial foundations, Vignoles' lectures on

147, 233, 371

165

20

177

66

134

79

Atmosphere, experiments on living under water without communication with the 359, 418

Babbitt's soft metal boxes, report on

394

87

Bann reservoir, description of the

BIBLIOGRAPHICAL NOTICES.

Ewbank's work on hydraulics,
United States almanac, for 1843,

Birmingham and Gloucester railway,

Bones found on the surface of a raised beach at the Hoe, fossil

Booth, J. C., and M. Boyé, on the theory of saponification,
Bottles, India rubber stoppers for

Bude light, A. Ure's report on the

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163

165

20

97

58

359

410

103

355

204

214

Chemical statics of organized beings, by M. Dumas,

23, 89, 170, 247

Chimney caps and ventilators, comparative value of different forms of

104

Chlorate of potassa, calcination of

419

Chlorates and nitrates, method of distinguishing between weak solutions of
Civil engineering, Vignoles' lectures on

285

79, 157, 243

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Contortions and faults in the strata underneath the great embankment across the

Corrosion and oxidation, process for protecting iron from .

Crane's patent for anthracite iron, decision of the Court on
Curves of large radius, mode of tracing,

Davies' elliptograph,

Delaware, mode of tracing a curve of large radius, adopted in the survey of the

98

206, 279

132

134

11

395

85

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Evaporation in, and incrustation of, steam boilers, remarks on

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Ewbank, T., on the comparative value of various forms of chimney caps and ventilators, 104

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Explosion of the steamboat Medora, description of the

Faults and contortions produced in the strata underneath the great embankment

across the Valley of the Brent,

Flash-board, sketch of a self-acting

Fossil bones found on the surface of a raised beach at the Hoe,

plants in the plastic clays, occurrence of

Fossils, on the mouths of ammonites, and on other

Foundations, Vignoles' lectures on artificial

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408

163

312

98

329

97

178

177

79

83

396

216

286

Address of the President preceding the reading of the report of the Com-
mittee on Premiums and Exhibitions,

332

Report of he Committe on Premiums and Exhibitions on the Twelfth Ex-
hibition,

333

Address of Professor A. D. Bache, at the close of the Twelfth Exhibition,

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Committee on Science and the Arts.

Report on A. Leach's suspension railway ferry, and drawbridge,
W. C. Grimes' smut mill,

Spaulding & Isherwood's cast iron rails for railways,

A. Calderhead's carpet loom,

I. Babbitt's soft metal boxes,

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Hayden, C. B., on a comparison of the mean temperature of the year with the

mean temperature of October and April,

Heating and ventilating, report on

Herapath, J., facts and observations on four and six wheel engines,

Hourly observations during the Equinoxial periods, at Nashville, Tennessee, by

95

415

15, 73, 151, 239

396

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Incrustation of, and evaporation in, steam boilers, remarks on
India rubber stoppers for bottles,

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Latrobe, B. H., description of the explosion of the steamboat Medora,

312.

Law, new act of Congress for the registering of designs, and for amending the
Patent

351

Light, A. Ure's report on the Bude

410

Massachusetts, railways in

Lights in rapid motion, experiments on the visibility of

Living under water without communication with the atmosphere,
Locomotive, Robert Stephenson's new

engines, American

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Locomotives, report on French's spark-arrester for

London and Birmingham railway,

North-western railway,

Loom, report on Calderhead's carpet

Mallet's process for protecting iron from corrosion and oxidation,

Mary port and Carlisle railway,

Medora, description of the explosion of the steamboat

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facts and observations on four and six wheel

15, 73, 151, 239

396

79

155

103

206, 279

241

368

312

Metal boxes, report on Babbitt's soft

394

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Naglee's railway for short curves, report on

395

Nitrates and chlorates, method of distinguishing between weak solutions of

285

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Patent law, new act of Congress for registering designs and amending the
Pavements, wooden

Payerne's, Dr., experiments on living under water without communication with

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406

360

351

162

359, 418

417

28

282

284

178

281

66

419

252

Railroad cars, report on Babbitt's soft metal boxes for

394

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Railways in Massachusetts,

Vignoles' lectures on atmospheric

Reaction water wheels, remarks on, by E. Morris, C. E.,

368

245

217, 289

Redfield, W. C., on the evidence of a general whirling action in the Providence tornado, 252

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Salts in living plants, action of

Saponification, thecry of, by J. C. Booth and M. Boyé,

Schafhaeutl, Dr. C., description of an universal photometer,

Short curves, report on Naglee's railway for

Sluice, description of a self-acting weir and scouring

Smelting furnaces, vapors in

Smut mill, report on W. C. Grimes'

Soap suds, fabricating gas for lighting from

Soft metal boxes, report on Babbitt's

Sound, propagation of

Spark-arrester, report on French's

Spiders, ingenuity of

Spontaneous combustion of coal, remedy for the

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Steam boilers, remarks on evaporation in, and incrustation of,

—, B. H. Latrobe on the general construction and management of

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87

243

284

58

28

395

330

216

32

211

394

29

396

408

420

204

113

312

65

312

112

62, 108

139

281

352

30

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Temperature of October and April, comparison of the mean temperature of the

year with the mean

Thermometer, description of an electric

-, report on the comparative strength and elasticity of

356

95

176

21

360

327

Tornado, evidence of whirling action in the Providence

252

Transportation on railroads, cost of

144, 228, 304, 361

Trautwine, J. C., description of the aqueduct across the river Alleghany,

1

Turbine, superiority of a, over an overshot water wheel, experiments by M.

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