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IMPLEMENTS, agricultural, 64, 156
Improved: air pump, 443; combination
tool, 176; fires, Kapper's, 17; friction--
clutch, 569; life-preserving dress, 110;
machine for mortising timber, 31; port-
able steam engine, 469; screw-driver,
248; tricycle, 308, 420, 468; velocimaine,
155; waggon-wheel, 220
Improvements in: cooking, 60; direct-
acting engines, 108; filtration, 180;
motive power, 224; paddle-wheels, 108;
power-looms, 608; turret clocks, 84

Index for dividing plate, 114

Insect, cochineal, 137

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564

earth, 7, 89, 135, 209

Motive power, improvements in, 224
Mounting planing machine, 493
Mowing machine, Allen's, 156
Musical notation, 496
Mussel-climbing, 561
Muzzle for dogs, 405

NAMES on plans, 141, 188

Nature, sketching from, 3, 4, 106
Nebula and comets, 273, 296
Needham's starter for sewing-machines,

232

Nets, fishermen's, 380

Now lathe by George Plant, 421; new
style of railway, 277: New York pneu-
matic tunnel, 32, 36, 37
Notation, musical, 496

Old coins, 94, 118

Opera-glass lenses, 136, 185

Operations of the wood-boring beetle, 176

Optical and spectroscopical, 323, 500, 586
Organ accordion stand, 546; organ blow-
ing, 228; organ construction, 112

"Otter" for lifeboat service, 233

Oval, 526

Oxyhydrogen gas stove, 41

397

Photoscope, the, 377

Piano string-space, 352

Piston pressure, 599;
Pistons, Ramsbottom's, 405

Plan for carrying trains across the Straits
of Dover, 324; plan for cutter-bar, 187
Planet Vulcan, the supposed, 84, 137
Planing machine, 429, 493
Plans, names on, 141, 188

Plant, cochineal, 137; Plant's lathe, 421
Plough, bookbinders', 259
Pneumatic tunnel, New York, 32, 36, 37
Polariscope, the, 468

Polytechnic barometer, Royal, 8
Portable steam engine, 469
Potato dibble, 156

Power-looms, 608; power, motive, 224;

power of screw, 592

RAILWAYS: street, 277; system,

Hutchinson's, 149: trains across the

Straits of Dover, 324

Ramsbottom's pistons, 405

Readings from the globes, 208, 252, 278,
829, 353, 372, 422, 472, 518, 688
Reaping machine, Allen's, 156
Reciprocal geometry, 601
Reclining sundial, declining, 62
Rectifying the circle, 370, 522

Reeds, harmonium, 382

Rest, slide, 249

Rifles: Chassepot, 517; Soper, 138
Rihoux's life-preserving dress, 110
Ring money, Irish, 238

Road locomotive, 253

Roberts's galvanic battery, 305; Roberts's
triple vacuum-pan, 393

Rock-drilling machines, 273, 300, 373

Roller barrow, 359

Rotary spader, patent, 64

Rotatory engines, 61, 115

Royal Polytechnic barometer. 8

Ruddick steam-engine, the, 4×9

SACKS, lifting, 140

Safety-valves, 214, 260, 280, 309, 325, 352
Saltaire lathe, the, 52

Satellites of Uranus, 522

Saturn, 136, 505, 529
Saw-teeth, 139

Science for the young, 78, 79, 80, 105, 154,

171, 196, 222, 268, 296, 297, 318, 338, 364,
411, 413, 485, 507, 508, 532, 533, 557, 581,
582

Scraper for boilers and tubes, 429
Screw-cutting lathe, small, 252; screw-
driver, improved, 248; screw power,
592; screw-propellers, Fothergill's, 12,
Scroll for head-rail, 425

Seek's apparatus for cleaning grain, 348
Self-acting blowpipe, 305; self-acting feed-
water heater, 369; self-centering wire-
chuck, 544; self-feathering screw pro-
pellers, 12; self-propelling vehicles, 77
Setting jewelled holes, 428
Sewing-machines, 113, 157, 231, 232, 281,
376, 588

Shand's steam-pumps and fire-engines, 85
Shearing animals and skins, 125; Shear-
ing, punching, and stretching machine,

133

Specula, 37

Spherical slide rest, 249

Spinning cotton, 112, 133, 183, 204, 230,

231, 284

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VACUUM-PAN, triple, 393

Valves: double-beat Cornish, 356; lead
of valve, 255; lever of valve, 260; safety,
214, 260, 280, 309, 325, 352; slide-valve,
589; throttle-valve. 261; valve, 20
Varley's patent coil, 20

Vehicles, self-propelling, 77
Veloce, $33

Velocimane, Doirier's, 155

Velocipedes: English," the, 65; four-
wheeled, 521: "Macclesfield," the, 89;

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Combustion, phenomena of, 2, 32, 55

Comets and meteors, 313, 362, 434, 482;

comets and nebulæ, 272, 295

Common roads, steam on, 442
Competition of art-workmen, 319
Compound engines, 465; "compound set,"
Solomons's, 128

Condition of the sun, 577

Constructing high electrical resistance,
466

Constructive horology, 418

Country and town microscopical jottings,
337, 363 410, 436, 484

Cranes, wrought-iron, 443, 536, 583

Cunningham and McCarthy's improve-
ments in obtaining motive power, 223

Currents, electric, 603

Curious caterpillars, 30, 125, 243, 339, 437,

633

Cutting glass, 298
Cyclosis in Anacharis, 553
Cylinders, friction in, 273, 294, 344, 388

EAR, the, its uses and abuses, 5, 28, 51

Earth, the, its figure and motions, 6

Eclipses, solar, 225

Economic lubricator, 109

Economical purification of coal gas, 394

Economising heat, 388

Edge tools, grinding, 275

Efficient lathe, an, 52

Electric currents, 603; electric fulgurator,

the, 224

Electrical resistance, high, 466

Electricity, its theory, sources, and appli-

cation, 26, 74, 146, 195, 218, 265, 340, 387,

481, 530, 579

Electro-typographic machine, 510
Elementary science, 54, 78, 105 154, 171,
196, 222, 267, 296, 318, 337, 364, 411, 485,
507, 532, 556, 581

Emigration to Victoria, 315, 345, 389

Employment of workmen, 174

Enamel, printing on, 538
Enamelling liquor barrels, 586
Energy, 366, 390, 415, 510

Engineers, Manchester Institution of, 31
Engines: compound, 465; direct-acting,

108; duty of, 319; high-pressure, 106;
portable, 467; Ruddick, the, 489

ENGLISH MECHANIC blowpipe, the,_77;

ENGLISH MECHANIC lifeboat, 101; ENG-

LISH MECHANIC Mutual Improvement

Society, Manchester, 220: ENGLISH

MECHANIC Society of Arts, Edinburgh,

180, 195, 300; English steam road-roll-

ing, 605

Escape, fire, 153

Evaporation meter for boilers, 490

Examination papers, Whitworth Scholar-

ships, 316; examination of rocks and

minerals, microscopical, 580; examina-

tion, systematic microscopic, 299

Exhaust steam for heating purposes, 56

Exhausted tea-leaves, 127

Exhibition of 1871,

321; Exhibition,

Workmen's International, 409, 457
Exhibitions, working men's, 385, 457
Experiment, medical, 390

Experimental research in relation to em-
ployment for workmen, 174

Experiments on the resistance of iron and

steel, 539

603

Food analysis, 175, 202, 292; food, gelatine
as a, 586; food, value of, 107
Forecasting of storms, 537, 560
Formation and antiquity of the world, 313,
337, 362, 410, 435, 484, 553, 580
France and Prussia, strength of, 509
Friction, 33, 82, 250, 467, 513, 585; friction
in steam cylinders, 273, 294, 344, 388
Fulgurator, electric, 224
Furnaces, hot blast, 244

GALVANIC batteries, 297

Gas management, 292; gas manufacture.

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HALFPENNY postage, 391

Halley's comet, 50, 77, 100
Harmonium, practical treatise on, 25, 99,
178, 290, 433, 458, 555
Hawkins's fire-escape, 153
Heat, economising, 388; heat, solar, 416;
heat, Professor Tyndall on, 55

Heating with exhaust steam, 56

High electrical resistance, 466; high-

pressure boilers, 459; high pressure

engines, 106

Hints on microscopes, 274; hints on
watering plants, 490; hints to astro-
nomical students, 73, 265, 386
Horology, constructive, 418
Horse, geological pedigree of, 102
Hot-blast furnaces, 244

How to choose a microscope, 418, 531;
how to collect insects, 317; how mer-
curial thermometers are made, 539;
how to obtain stereoscopic photographs
of microscopic objects, 606; how to use
cements, 538.

Hutchinson's new railway system. 148
Huxley, Professor, on the horse, 102

IMPROVED: combination tool. 175; life
preserving dress, 110; machine for mor-
tising timber, 31; portable steam-
engine, 467; screw-driver, 248; veloci-
mane, 155; waggon wheel, 220
Improvements in: direct-acting engines,
108; filtration, 180; gas manufacture,
507; obtaining motive-power, 223;
optical apparatus, 606; paddle-wheels,
108; power-looms, 607
Information, geographical, 126
Inorganic chemistry, 506, 554
Insects, boring, 176; insects, collecting,
317

Inspecting boilers, 466

Institution of civil engineers, 195; Insti-
tution of Engineers, Manchester, 31

Intense electric currents, 603

International Exhibition, Workmen's, 409,

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LATHE and its uses, 248; lathe for
Titus Salt, Esq., 52

Launching a great caisson, 465

Laws on patents, the, 202

Lead ores, dressing, 80

Leaf as a worker, the, 391, 509

Leaves, tea, 127

Lieut.-Gen. Hutchinson's railway system,
148

Life, organic, 462, 486; life, progression
of, 534, 558; life-preserving dress, 110
Lifeboat, the ENGLISH MECHANIC, 101;
lifeboat, steam, 202

Light and magnetism, 33

Liquor-barrels, enamelling, 586

Liver, structure of, 56

Lockyer, Mr., on the sun, 110, 320

Looking-glasses, platinised, 27, 56

Looms, power, 607

Lubricator, economic, 109

Lunar activity, 511

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NATURE, sketching from, 3, 166
Nebula and comets, 272, 295
Norman Lockyer on the sun, 110, 320
Notation, modern chemical, 9
Notes, astronomical, 34, 155, 250, 346, 444.
563; notes of proceedings, Astronomical
Society, 8, 109, 224; notes on recent
scientific discoveries, 58, 245, 368

New: antiseptic, 559; electro-typographic

machine, 510; patent "compound set,

128; salt for intense electric currents

603; sphygmoscope, 586

New York pneumatic tunnel, 32

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SAFETY in working coal, 269, 294

Salt, 181: salt for intense electric cur
rents, 603

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Structure of a country, geological, 219,
270; structure of the liver, 56

Studying insects, 317

Sugar from beets, 392

Sulphur in irons, 54

Sun, the, 577; sun, Norman Lockyer on

the, 110, 320; sunbeam's stripes, 145, 172,

193, 217, 241; sunstroke, theory of, 603

Surface of the moon, 559

Swarming of bees, 582
Symbols, chemical, 49, 97

System of railways, Hutchinson's, 148
Systematic miscroscopic examination, 299

TEA-LEAVES, exhausted, 127

Telescopic work for moonlight evenings,

418, 436, 602

Temperature of the sun, 577

Testing the duty of steam-engines, 319
Theory and applications of electricity, 26,
74, 146, 195, 218, 265, 340, 387, 481, 530,
579; theory of nebula and comets, 272,
295; theory of sunstroke, 603

Thermometers, mercurial, 539

Thomson's road-steamer, 511

Timber, machine for mortising, 31

Time, 1

Tools: combination, 175: edge, 275
Town and country miscroscopical jottings,
337, 363, 410, 436, 484

Treatise on the harmonium, 25, 99, 173,

290, 433, 458, 555

WAGGON-wheel, improved, 220

War, the, 481, 489

Watches, winding, 443

Water and war, 489; water-weed, Ameri-

can, 553

Watering plants, 490

Watson's tubular-wells, 275
Waves, the, 31

Weed, American water, 558
Weights and measures, 440

Wells motive power from, 391; wells,
tubular, 275

What is energy, 366, 390, 415, 510: what
stripes the sunbeam, 145, 172, 193, 217,
241

Wheels: Keyes's waggon, 220; paddle, 108

White brass, Parsons's, 292

Whitworth Scholarship

Winding watches and clocks, 443

Worker, the leaf as a 391, 509

Working coal, 269, 294; working men's
exhibitions, 385, 409

Workmanship, art, 319

Workmen, employment of, 174: Work-
men's International Exhibition, 409, 457
World, the, its formation and antiquity,
313, 337, 362, 410, 455, 484, 553, 580;
worlds, other, 241

Wright's paddle-wheels, 108
Wrought-iron cranes, 443, 536, 583

ZOLLNER, Dr., on the sun, 577
Zymoties, 394, 414, 438

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Boilers: feeding, 204, 227, 426: Field, the,

522, 543; incrustation of, 62: power of,

590; safety valves of, 352; scraper for,

491; scale in, 230; testing, 282

Bolters, silk, 403

Book-edges, cutting, 349; bookbinders'
cutting press, 64
Boomerang, the, 160, 257

Boring cylinders, 234, 396; boring insects,
258

Bottoms of cylinder covers, 521

Bronchitis, 62

Buckle, turn, 612

Building boats, 616: building organ, 88;
building and steering vessels, 36
Buildings, ventilating, 306, 332
Bungs, turning, 15

Burning glass, 208

CABINET and cottage pianos, im-
proving, 41

Calculating distances, 136

Callaud's battery, 328, 347, 377, 522

Camera, 396

Canada, emigration to, 403

Cape Horn, Good Hope, &c., 373

Caps for reflectors, 257

Carbon monoxide, 256

Carbonic acid, 590; carbonic acid gas,
615; carbonic acid as a motive power,
614

Chlorate, baric, 64; chlorate of barium,

10, 186

Chloride, auric, 588; chloride of gold,

590: chloride of silver, 10

Choosing one's belief, 210, 227

Chucks: Bennett's, 41, 114; screw, 159;
screw-in, 184; self centring, 11, 544
Church organ, rebuilding, 279

Circle-sailing, 424; circle, squaring the,
300, 326, 350, 351, 376, 424, 446, 612
Cistern, painting, 590

Clairvoyance, 225

Clavichord, the, 370

Cleaning windows, 587

Clinton's flute, 425

Clip for holding papers, 284

Clock bell, 330; clock-dial, silvering. 587;
clock, how to keep right, 62, 256; clocks,

1

Colony, an ENGLISH MECHANIC, 330

Colour-blindness, 232,

258;

234, 254.

colours of Jupiter, 86; colours of stars,

256

Combined funnel and measure, 136; com-

bined drill, runner and tap, 111; com-

bined punching, shearing, and stretching

machine, 132

Comfort for railway travellers, 86

Commerce and trade, 161, 184, 206, 209,
227, 257, 278, 306, 326, 329, 351, 375, 378
Comparative temperature in June '69 and
$70,403

Composition of the human body, 449;
composition of the meteorites, 570

Comstock's rotary spader, 64

Concave lens, 307

Concussion shells, 136

Condenser, microscopic, 305, 353

Conductors, lightning, 544

Cones, frustrum of, 474

Cones flour, 10

Congratulations, 323

Conic sections, 446, 474, 497
Constellation names, 446

Constructing telescopes, 158, 251

Construction of: clavichord, 373; lathes,

448, 474; organs, 112; velocipedes, 210,

374

Crushed oats, 64

Crystals, soda, 10

Culture, mushrooms, 400; vine, 593
Cumberland miner's appeal, a, 307, 326,

350. 593

Cunningham and McCarthy's improve-

ments in motive power, 256, 351

Curious arithmetical problem, 227; curious

questions, 378, 518, 540, 592, 610

Curious sentence, 423, 462, 497
Currents, reaction of, 396
Cutter-bar, 353

Cutting book-edges, 349; cutting irregular
forms, 208; cutting-press, book-binders',
64; cutting slots, 112, 162, 184
Cylinder covers, 521; cylinders, boring,
234, 396

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Draught in carding engine, 136

Drawing: isometrical, 420: perspective,
397; drawing for the million, 16
Dressing millstones, 227

Drill, rimer, and tap combined, 111; drill
for stone and brick, 183; drills, expand-
ing, 233; drills, tempering, 353

Drums, Kelsey's wedge-driving, 113

Dry plate photography, 279, 307, 308

Dugdale's clothes-washer, 228

Dyeing, 568

Dynamics, Mr. Beardsley's, 112, 163, 225

Electro-gilding, 424; electro-magnetic ap-
paratus, 185; electro-magnetism, 544,
570; electro-plating, 424
Ellipsograph, 448
Elliptical gearing, 397
Ellipticity of the earth, 256
Emigration, 402, 444, 492, 520, 543; emi-
gration to Canada, 403; emigration and
geography, 115, 230, 255, 255, 253, 302,
327; emigration to Victoria, 378

Employment and advertising, 226

Engine lubricators, 156, 185, 212; engine-

pump, model, 157

Engines: carding, 136; rotatory. 61, 114;

steam fire, 84; wheel-cutting, 12

Engineering query, 39

ENGLISH MECHANIC: colony, 330, 402;

lifeboat, 251; microscopical soclety,

592; mutual improvement societies, 89,

130, 159, 187, 351; society for Bristol,

593

English roads, 65, 89; English velocipede,

the, 65, 89, 230

Equations, 35, 38, 88, 131, 159, 226, 284,

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Flute, the, 309, 373, 402, 426, 449, 469, 475,
515, 593; flute-playing, 402, 475, 515,

593

Flutes: the Boehm, 280, 376; Clinton's,
425; Ward's', 468

Focal length of concave lens, 307

Focus, 591

Fog-horns, 160,496

Fontenelle, the crater, 468, 519

Foot-lathe for turning bungs, 15

Forces, parallelogram of, 375

Forms, irregular. 208
Fortifications of Paris, 593

Forum recreations, Bath, 354

Fossil, coal-measure, 612

Fothergill's self-feathering screw-propel-
lers, 12

Four-wheeled velocipedes, 320, 521

"F.R. A.S." and the Nautical Almanac,"
14, 35, 58

Fraunhofer's lines, 114

Free-reed organs, 518, 569, 614

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GALVANIC bands, 11; galvanic batte-
ries, 225, 494, 522; galvanic battery,
Roberts's, 305

Galvanism, medical, 281, 326

Galway, Mayo, and Sligo, 348

Gas by a new process, 474; gas as a fuel,

16; gas for heating greenhouse, 12;

gas mains, tool for, 111; gas stove, oxy-

hydrogen, 41; gas: carbonic acid, 614,

615; carburetting, 63; cheap, 354, 370,

400, 420, 448, 498, 542, 569
Gate latch, 61

Gauge-cock, 60; gauge, water, 60
Gauze battery, platinised, 211
Gearing, elliptical, 397

Geography and emigration, 115, 230, 255,
258, 283, 302, 327

Geology, 303, 325; geology of Ireland,

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Globes, readings from the, 208, 252, 278,

329, 352, 372, 421, 472, 518, 542, 588

Glue, melting, 587

Gold: chloride of, 592; coin, ancient, 520;

testing, 590

Good: chemical battery, 88; Hope, Cape
of, 73; instrument, a, 15; paint, 138

Gourds, 350

Granite-working in ancient times, 16

Grass: China, 87; rhea, 114

Gravity lactometer, 36

Great circle sailing, 424

Greenhouse heating, 12, 284
Greenwood's fret-saw machine, 612
Grinding: object glasses, 333; speculum,
62.284

Growing potatoes, 333

Gun accidents, 15; gun, ball, and earth,
350; gun-carriage, Moncrieff's, 564;
gun, the Gatling, 565

Gunpowder, improvements in, 204

HAIR, purifying, 395

Hammers, steam, 326

Hand-planing, machine, 446; handrail

scroll, 425

Handy tent, photographic, 520

Handwriting. 469, 515, 545

Harmonium, the, 186, 206, 226, 234, 398,

451, 514, 518, 569, 614, 615; harmonium

keys, 86; harmonium reeds, 41, 90, 471

Harvest, the, 492

Hawkins's musical notation, 58, 227
Heads, big, and phrenology, 40, 90
Heaters for feed water, 301, 329, 369, 610
Heating greenhouses, 12, 284
Heavenly bodies, light of, 282
Height of clouds, 515, 543, 569, 587
Herschelian telescope. 563

Highest vacuum in air pump, 252, 305
Hints: on cross-breeding plants, 378; to
correspondents, 617; to millers, 378

History of the pianoforte, 446, 469

Hodgson's wire tramway, 228

Improvement societies, ENGLISH ME-
CHANIC mutual, 89, 130, 159, 187
Improvements in: cooking, 60;
powder, 204; motive power, Cunning-
ham's, 256, 351; old cottage and cabinet
pianofortes, 41; sewing machines, 588;
steam pumps and fire engines, 84;
turret clocks, 83

Inclined surfaces, tool for, 401

Increase of insanity, 111

Incrustation of boilers, 62

Index for dividing plate, 114

India-rubber, vulcanising, 546

Indian architecture, ancient, 160

Indigo, 375

Induction coll, 207, 225, 279, 284, 375, 567,

593

Ingredients for good paint, 138

Instruments: ancient musical, 16; good,

15

Insulation of induction coil, 284

Interference rings round the sun, 308
Internally-geared lathe, 348

International Exhibition, Workmen's, 130,

162

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Lighting the National Gallery and British
Museum, 347

Lightning conductors, 544

Lines, Fraunhofer's, 114; lines in solar
spectrum, 183, 211, 230, 256, 257, 279,
282, 302, 329, 347, 378

Link motion, 301, 352, 355, 378, 425, 471,
519, 541, 589

Literature, criminal, 63

"Little Wonder," the, 208
Lock-nut, 16

Locomotive ashbox, 568; locomotive, road,
253

Longitude of Venus, 379

Low-water detector, 325

Lubricators, 156, 185, 212

Lull's friction clutch, 569

Lunar: activity, 371; cosmology, 423, 519,

545, 610; craters, 233, 374, 468, 519;

motion, 545

MACHINES for: cutting irregular
forms, 208; electrical purposes, 14; fret-
sawing, 612; hand-planing, 446; magneto-
electric, 131 planing, 493; printing, 445;
punching, shearing, and stretching, 132;
reaping and mowing, 156; sewing, 90,
113, 157, 211, 231, 232, 280, 308, 374, 375,
588; stoning cherries, 252

"Macclesfield" velocipede, the, 15, 89

Magnetism, 590

Magneto-electric machines, Slater's, 131
Mahoe-wood, blue, 111, 159, 160

Making: bread, 15, 63; camera, 396; cod-
liver oil, 495; gas, 474; sundials, 14, 62

Malaria, investigation of, 497

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Motive power: electro magnetism as a,
570; improvements in, 256, 351; for
velocipede, 497

Mounting: insects for the microscope, 564;
planing machine, 493; telescopes, 158

Movements, wing, 282

Mowing machine, Allen's, 156¦

Mushroom culture, 400

Music, 308, 332, 349, 445, 494

Musical, 445, 494; musical instrument,

ancient, 16; musical instruments, 346;

musical notation, 58, 227, 496, 544

Mutual improvement societies, ENGLISH

MECHANIC, 89, 130, 159, 187

NAMES of constellations, 446

National Gallery, lighting, 347

Natural science in military education, 401
Nature of light, 543, 564

"Nautical Almanack," the, and "F.R.A.S."
14, 35, 58

Needham's starter for sewing machines,232
New carriage brake, 64; lathe, 421;
paint, a, 61; planisphere, 210; process
of gas-making, 474; style of railway, 277
Ninety miles a day on a bicycle, 137
Nitrate of silver, 590

North of Ireland, 350; North Wales, 376
Northwich salt mine, 355

Notation, musical, 58, 227, 496, 545
Notes, astronomical, 450, 563
Numerals, Roman, 446

Nut, lock, 16

OATS, crushed, 64

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'70, 403, 497

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UNEQUAL steam pressure, 397, 422

Unfair criticism, 374, 401, 426, 446

Universal clothes-washer, 228

Unknown coal-measure fossil, 612

Upright pianoforte, 398

Uranus, satellites of, 522, 540, 591, 610

Use of the telescope, 251; uses of the

lathe, 329

Useful tool for level surfaces, 401
Utilising power, 353, 425

VACUUM in air pump, 252, 305
Valves: Hopkinson's, 12; "lead" of
254; safety, 279, 325, 352, 448; slide, 589

Variations in barometric pressure, 444

Varnish. violin, 14, 39, 62, 227

Vegetable oils and fats, 331, 347, 379

Veloce, the Phantom," 567

Velocipede construction, 210, 374; veloci-
pede wheel, the "Phantom," 256; ve-
locipedes, 131, 256, 326, 329; velocipedes:
English," 65, 89, 230; four-wheeled,

330, 521; Macclesfield," 15, 89; mo-

tive power for, 497; "Phoenix," 426;

"Shiptonian," 253; sportsman's, 349;

spring, 514

Ventilation: buildings, 306, 332; collieries,
11: hygiene of, 210

Vessel propelled by a windmill, 582;

vessels : building and steering, 36

Violin bellies, 111; violin varnish, 14, 39,

62, 227

WAGES, 329

Wales, North, 376

Walking, 494, 614

Wall decoration, 473, 497
Ward's flute, 468

Water analyses, 187, 234, 253, 282, 353,
377; barometer, 396; convexity of, 252;
feed, 301, 329, 610; gauge and gauge-
cock. 60; water-heater, Barton's, 369:
water and steam, 181; water-wheel, 228

Wedge-driving drums, Kelsey's, 113

Weights of chemical solutions, 474

West of Ireland, 257

What is a manichord, 399; what we owe

to the alchemists, 616

Wheel-cutting engine, 12; wheel-stones,

282; wheels: carriage, 495; fairy, 233,

258; fly, 301; friction, 446; Phan-

tom," 87, 115, 137, 163, 256, 303, 328,

495, 567, 616; Shewan's water, 157;

spiral water, 157; suspension, 616;

water, 228

Windmills, 14, 40, 450, 495; windmill for

propelling vessels, 587
Window cleaning, 587

Wing movements, 282

Wire-chuck, self-centering, 544; wire for
electro-magnetic apparatus, 185; wire
tramway at Brighton, 228

Wood for fishing rods, blue mahoe, 111,
159, 160, 162

Wooden organ pipes, 110, 139
Work, turned, 372

Working granite in ancient times, 16;
working men and the patent laws, 331;
working speculum, 611

Workman's appeal, a, 331, 349; workmen's
Interna-
exhibitions: Belfast,
257;

tional, 130, 162
Workshop accidents, 473
Wray's object-glasses, 40, 252
Writing, hand, 469, 515, 645

YEAST, 15

Yorkshire slab, 185
Young, science for the, 257, 283

ZINC plant, 38

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