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United States, mines and minerals of, 288
Ure, Dr., Report by, on the Bude and Boc-

cius Lights, 343
Vallance, John, Esq., on his poenmatic rail.

ways, 64 ; ventilating ships in tropical

climates, 79, 117
Ventilation of mines, 104 ; Mr. Biram's plan,

558
Ventilation of public buildings, &c. :-

Mr. Bernhardt's system, 74
Mr. Rowley's ditto, 136
Haden's improvements in, 263
Gillot's, ditto, 350

Experiments in, 372
Vignoles, Professor, on the atmospheric

railway, 33, 447
Violin, keyed, of Mr. J. I. Hawkins, 562
Vis vita, and ris inertiæ, 496
Vivian, the late Capt. A., 303
Voltaic currents, Messrs. Wright and Bain's

experiments on, 197, 293
Walker, Charles, Esq., on lightning conduc-

tors, 110
Walker's patent candles and candlesticks,

510
Warming, Bernhardt's system of, 74

Gillot's, 350

Hadeo's. improvements in, 263
Warren's patent improvements in ploughs,

477
Water supply of the metropolis : 4, 40,

78, 122, 137, 258, 268, 282, 301,
333, 334, 347, 369, 396, 430, 486, 553,
357

action of, on lead, 488
fete, 224

, kite, 10, 87
Water pipes, cleansing, 508
Water-closet, Smith's patent, 278
Waterproof boots, 515
Waterproofing, Macerone on, 598
Water-wheels, economical application of
sleam-power to, 71

-, performance of, 154
Watches, manufacture of, 416
Watson's improvements in cloth-dressing,

44

Wax light, cost of, as compared with gas,

500
Weaving, figure, 336, 309
Weights and measures, standard, 24
Weighing-machine, Newton's, 319
Weight- hoisting machinery, Holmes's, 379
Well-sinking, 309, 375
Wheels, plan to drive, by elastic friction,

385
White, Capt. M., on the tides, 360
White, James, Esq., C.E.; plan to drive

wheels by elastic friction, 385
Whitelaw and Stirrat's hydraulic engines,

418
Whittlesay's rotary steam-engine, 157
Whitworth's guide screw-stock, 464
Whitworth's street-sweeping machine, 608
Williams, C. W. Esq. on combustion,

furnaces and boilers, smoke nuisance,
&c., 11, 19, 31, 57, 131, 165, 227, 275,
394, 448, 595
Wilson, J. T., Esq., on blasting rocks by

galvanism, 70
Windmills, Zimmermann's, 379
Windlasses, Grill's improvements in, 337
Wire-gauges, standard, 520
Wire-rope, Smith's, 189

Newall's, 192, 199
immense, 528

application of, to lightning con-
ductors, 399, 449, 472
Woodhead, George, Esq., on the action of

air, 405
Wood-paving, Reynolds's, 264

-, progress of, 466, 542

Macerone
Woods, fancy, imitation of, 21
Work, unit of, meaning of the term, 496
Worman's flour-mill, 479
Wright and Bain's, Messrs., experiments on

the transmission of roltaic currents, 197,
293

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Ystalyfera Iron Company's cold-blast an-

thracite iron, 565

Zander's systems of steam expansion and

condensation, 353, 392, 422, 414, 485
Zimmerman's windinills, 379

NOTICES TO CORRESPONDENTS.
(Selected froin the covers of the Weekly Numbers, as being more or less of permanent interest.)
MR. WEBSTER's Book on Patents is the latest, and also the best.—" A Patent Pro-
prielormay also consult with advantage the smaller work by the same able and judicious
writer on The Subject Matter of Letters Patent for Inventions."

MODELS OR SPECIMENS OF Inventions may be sent to the Polytechnic Institution,
where they will be exhibited to the best possible advantage, and where inventors are sure,
besides, to experience the most courteous treatment ai the hands of the manager and
secretary.

PARTICIPATION IN INVENTIONS (A Master Manufacturer).-If the workman was merely employed to work out his master's ideas, and invented nothing himself, he has no claim in law or equity to any share of the proposed patent.

DISCLAIMERS are not all advertised. The law officers of the Crown may do as they please in this respect.

TREVETHICK is still without any monument to his memorythe more the shame. He lies buried in Dartford churchyard.

DisCOVERY OF THE LONGITUDE.-P. V. has won. There is no longer any reward offered by Government in relation to the discovery of the longitude. The truth is, that the skill and ingenuity of our chronometer-makers have left nothing to be discovered.

THE GOVERNMENT School of Design teaches drawing only, and as long as it does 80, will never turn out a good practical designer of soft goods patterns. D. S." should send his son to some of the Manchester or Glasgow print-works.

Designs REGISTRABLE UNDER THE New Act.-(A Designer.) The New Act strictly confines the privilege of registration to ornamental designs.

Fictitious USE OF THE TERM “ Patent." There is no statutory penalty; the only objection is, that the thing is dishonest, and would probably be held to be a fraud by the common law of the land.

PERPETUAL MOTION. The following brief extract from the illustrious Smeaton, may perhaps suffice for an answer to Experimentalist.“We want (for perpetual motion) bodies having the following properties : that when they are made to ascend against gravitation, their absolute weight shall be less ; and when they descend by gravitation through an equal space, their absolute weight shall be greater, which, according to all we know of nature, is a repugnant or contradictory idea.

Just published, price 6d.

THE ACT (5 & 6 Vic. Cap. C.) TO CONSOLIDATE AND AMEND

THE LAWS RELATING TO

COPYRIGHT OF DESIGNS

FOR ORNAMENTING ARTICLES OF MANUFACTURE;

WITH

EXPLANATORY NOTES, PRACTICAL DIRECTIONS, TABLE OF FEES,

AND FORMS.

BY MESSRS. J. C. ROBERTSON AND CO.

Agents for Registration of Designs and Solicitation of Patents.

LIST OF NEW PATENTS GRANTED FOR ENGLAND, SCOT

LAND, AND IRELAND.
Name.

Subject.

England. Scotland. Ireland. Pages.

223 416

320

6 July

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Albert
Manure..

10 August
Alzard
Bread, &c..

20 Oct. Armstrong & ors Ploughing

22 Sept. Aubril & others. Sugar....

25 Nov. Ayers Ornamenting glass, &c....

23 July Baker

Wheels and tires
Baggs
Carbonic acid-gas machine

8 Sept.
Producing light..

25 Nov. 13 Dec. Banks

Railway wheels
Barber
Boots and shoes

8 Dec. Barclay Cutting glass, &c...

25 August Barling.. Rotary engines..

16 July Barnes

Printing cotton, &c.... 10 Nov.
Barrе.

Sails...
Beaman
Malleable iron..

22 Dec. Bedells & others. Lace..

15 Sept. Bell, T. Copper.

29 July Bell, E.. Puel..

29 Sept. Benton. Railway carriages.

16 July Betteley Windlasses ..

11 August Betts Bottle stoppers.

11 August 8 Sept. Bevan Heat....

5 Nov. Bewley . Chalybeate water..

4 Oct. Biram Rotary engines..

11 August Bird Raising water.

7 July Bishop Railway breaks

12 Dec. Boccius Gas lighting...

14 July Bodmer Tyres for wheels..

8 Dec. 19 Dec. Propelling

9 July Bould Steam-engines.

23 June Bowles. Bread.

15 Sept. Boydell Iron gates, &c..

30 June Bridges Buttons ..

22 Dec. Brown & others. Carding engines.

13 Oct. 20 Oct. Brown, J....... Steam-engines & propelling 8 Dec. Browne, S...... Mud boots and overalls ...

7 Dec. Budd Iron ...

20 Oct. Bullough Looms

3 Nov. Burnell.. Lanterns Cardwell... Presses..

15 Dec. 9 Dec. Carson ... Preserving animal substances 3 August | 20 Dec. Castelain & others Sugar..

25 Nov. Chance ... Glass....

7 July Chativin.. Buttons.

16 July

3 Nov. Clay and another Printing.. Clarke ..... Lapping ad folding

17 Nov.
Clement Steam thermometer.. 12 July
Cobbold Propelling ...

18 July
Writing or marking.... 3 Dec.
Cockson & others Drying & sifting corn, &c.
Conder.. Cutting wood..

9 Nov.
Cooke
Electricity.

8 Sept. Coupland Furnaces..

30 June Cox Tanning

23 June Crofts Lace..

8 Sept. Crosley & another Sugar..

28 Dec.

Booth.

527

128 14 Oct. 576 15 Oct. 336-591

528-608 14 Oct. 143-576

607 336 128

512 1 July

143 608

320 15 Oct. 223-591

415 128

223 223_-336

225 21 May

16-416
143
128
608

143 607-608

128

16 320 143

608 415-416

607 608 416

512 8 July

16 607-608 223-416

527 128 128

528 13 Sept. 1528–576

128 128

607 5 Sept.

576 528 320 143

16 320 608

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128 336

16 320 128

223 415-416 128-608

415 223 512 223 607 607 143 128 416 143 607 416 223 607 512 319 223 128 143

Oct. 6.

607

5 Sept.

Crutchett ......
Gas.........

12 July
Cutler
Tubes ...

23 August Daniell Food for cattle..

25 May David & others.. Ploughing

22 Sept. Deakin.... Saddlery,

12 July Defries & others. Gas meters

18 August Deutsche ........ Cement.

8 Oct. 8 Sept. Domisthorpe

12 Dec. Combing wool..

6 July Dotchin Paving ...

13 Oct. Dry Thrashing machine

2 August Edwards.

2 Nov. ....... Razor strop.. Else..... Raising water...

18 August English Purifying turpentine.. 8 Dec. Etheridge.. Bricks, tiles, &c...

3 Dec, Fanshawe.. Waterproofing..

30 June Fairbairn Iron ships.

7 July Firchild Propelling..

26 Sept. Fox..... Steam-engines

18 July Fothergill.. Spinning....

8 Dec. Gardner Cutting hay, &c...

27 Oct. Geeves ........ Cork cutting ..

29 July Grantham Steam-engines & propelling

8 Dec.

2 Nov. Gregson..

....... Veneers Guitard Railways

31 August Gurney.. Light and heat..

18 August Hall, J.. Tilling land ...

6 July Hall, S.. Boilers...

18 July Hancock, W.... Bands and straps..

3 Dec.
Combs and brushes..
Harris & others. Reels..

8 Dec.
Harvey.. Vinous fermentation.... 8 Nov.
Hazard........
Ventilating ...

3 Sept. Hazeldine.... Omnibuses

27 Oct.

7 June Hedley & others. Purifying smoke... Hendry Combing wool..

25 Augu 27 July Henson Locomotive apparatus, &c. 29 Sept. Hodgson... Engraving

7 July Holcombe Combustion.

13 Oct. Howard Spinning..

4 Dec. Hughes Signals.

2 Sept. Hull.. Electrical apparatus

28 Dec. Hunt.

Bricks.... Hyde and Hyde. Spinning...

29 Sept.

3 Nov. Ingold. Watches

8 Nov. Insole. Brushes

8 Sept.
James, H. G.
Weighing

8 Sept.
James, W. H... Railways...
Jeffree
Raising water, &c...

6 July
Jeffrey
Ship building

18 Oct. Johnstone Propelling

23 July

2 August Jones.... Candles

8 Nov. 7 Dec. & others .. Candles.

8 Dec. 7 Dec. Jouannin Regulating steam power ..

9 July Juekes

Furnaces..... Kagenbusch... Alum...

13 Oct. 29 Sept. Dyeing.. Kempson Muffs, tippets, &c. ..

8 Dec. Kempton Candles

2 Sept.
Kneller.. Evaporation of brine. 22 Dec.
Lee..
Wheels and axles......

3 August
Lejeune
Combustion .......

29 July Roads

2 Nov.

3 May

576 607 512 319 416

16 223 415 128 415 607 336 608

16 415--528

512 320 320 320 143

416 128,223,576 512-608 607 -- 608

128

326 415--416

16

607 336-576

608 223 223 512

16 Sept.

6 Oct.

22 Sept.

11 May

6 Oct.

Lillie ........

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15 Oct.

Morris ....

4 May

12 May

13 Sept.

May

Looms....

Candles ..... Palmer ........

Logan... Cocoa-nut fibres.........

28 May Lomas

Fringes, cords, &c..... 8 Dec. 21 Dec. Longmaid Smelting

20 Oct. Losh.. Railway wheels..

9 Dec. Mansell . Cutting leather, &c...... 3 Dec. Marsden & others Flax and hemp dressing...

8 Sept.

1 Sept. Maurras .. Filtering ...

15 Nov. Middleton. Gelatine

6 June Miller Beds....

22 Dec. Mitchell, Pens and penholders

8 Nov. 11 Nov. Morand Stretching fabrics

1 Sept. Steam-engines ..

22 Dec. Morwood Preserving iron, &c.. Morean ... Steam generators..

21 Dec. 13 Dec. Propelling ..

21 Dec. Mullins White lead

27 Oct. Murray

Manures .....
Napier
Steam-engines and boilers.

9 August Nasmyth... Forging and cutting iron..

7 July Newbery Embossing leather

18 August Newton Screws

8 Sept.

31 August Artificial fuel

13 Oct. Excavating ..

25 July
Axletrees

8 Dec.
Weighing ..
Nickells & ano...
Lace machinery

15 Sept. Osbaldiston,

29 July

15 Dec. 22 Dec. Partridge Wool cleaning

23 July Pelletan Light ...

2 Nov. Perrin

Watches, clocks, &c... 8 August
Perring.
Wood paving

7 July
Phipps
Paving ...

1 August Pilbrow Steam-engines..

7 Nov. Paving ...

11 August Dressing-mill stones 15 Dec. 22 Dec. Pope..

7 Dec. Pouchant Sugar

3 Dec. 7 Dec. Preller Woolcombing

7 July

13 July Ditto ...

9 Dec. Part.. Aërated liquors....

8 Dec. Raille.. Coating metal

25 Nov, Railton... Weaving ...

6 June Rand.. Metallic vessels..

29 Sept. Raybould.. Soldering iron

18 August Redmond Hinges..

25 August Richard. Combustion..

7 July Richault Musical apparatus

15 Dec. Ridsdale Weaving..

29 Sept.

20 Oct. Ridgway Ovens ...

18 August

20 Dec. Rigby and Rigby Bristles Roberts .... Lamps

15 August Robinson & ano. Dressing flax, &c..

8 Sept. Robson Raising and forcing water

8 Sept. Roche Mineral colours

3 Sept. Rodway..

Horse-shoes.. Rolt.. Saddles...

15 Sept. Rothwell ...... Combustion..

5 Nov. Rotton.... Spinning

14 June Rowley & another Metal buttons .

15 Nov. Russell & another Iron tubing......

28 May

16 607-608

416 608

607 320,336,591 512

16 607 512-528

336 608

16 607-608

607 417

16 223 143

223 320–336

415 223576 407

16 320

123 607-608

128 512 223 128 223 528

223 607-60

607 607-608 128,143,576

608 607 528

16 415 223 223 128

607 415-416

223 607 223 320 320 320 143 320 512

16 512 16

Poole..

Stone........

6 Oct.

1 July

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