64;

animal

obtained from grapes,
matter, 528; anthracite, 173
-, Selligue's mode of preparing, 96
Count Val de Marino's, 203
Barrett's mode of working retorts, 129
meter, with balance and escapement, 167
burners, Argand's, proper construction
of, 342

best mode of burning for heating pur-
poses, Sir John Robinson on, 291
for light, 341

Bacon's patent burners and conduct
of Mr. Hutchinson, 293, 390, 423, 458,
470, 538

Cooke's patent argand burners, 407
new compressing pump, 416
illuminating power, cost, &c. of, 333
apparatus for cooking, 440, 553, 720
Rickett's, 553
Gaseous compounds, new, Dr. Hare, 287
Gases, diffusive power of, 513

718

Gregory, Dr. Olinthus, lecture by, at Wool-
wich Institution, 106
Gurney's Bude light, 118
Gypsography, new method of engraving in-
vented by Woone, 66, 256
H.

Hague's pneumatic machinery, 446
Hall's patent condensers, 9, 10, 26, 336,
683, 712; reefing paddle-wheels, 252,
273, 397, 453, 702, 760

Hancock, Mr. Thomas, further experiments
by, in common road steam-carriage loco-
motion, 6, 32, 128, 464, 479

Hancock's, (Mr. Charles) patent process of
picture printing, 368

Hare, Dr., on melting platina, 236; on cer-
tain new gaseous compounds, 287
Harris's process of evaporation, 474
Harris's, (Mr. Snow) lightning conductors
for ships, 497, 500, 568

Hartop on boilers and furnaces, 220
Hayes's patent for solution of tannin, 13
Heath's improvements in the manufacture of
iron and steel, 37

Heath's (Mr. W. W.) new solar system, 183,
218, 224

Heineken's (Mr. N. S.) specimens of ancient
inventions, 45

Hemp, Russian, superseded, 527

African bow-string, Dr. Royle, 692
Herapath and Cox's, (Messrs.) patent pro-
cess of manufacturing leather, 176, 208
Herron's hydrodynamic railway system, 198
Herschell Sir J. W., on photography, 28
Hickman and Davenport's patent for dress-
ing and finishing leather, 115
Hinges, Edward's patent, 51

-, machinery for making, Johnston's, 263
Hocking's steam safety valve, 114
Holden's dove-tailing machine, 476
Holebrook, Mr. J. P., on Mr. George
Rennie's experiments in propelling, 227,
310; his patent wheel contrasted with
Mr. Hall's, 252, 762

Hooper's letter-balance, 456
Horton's steam-engine pistons, 186
Horse-power wheel, Champonnois's, 65

experiments on, Morris's, 110
Hubbell's mode of generating steam, 116
Hot-house, improved boiler for, 405
Humphries's patent carpets and rugs, 472
Hurd's patent for making sugar from beet-
root, 14

Hutchinson, Mr., conduct of, in relation to

Mechanics' Institution, a second in
Liverpool, 256

Boston, (Mass.) Charitable Mechanic

Association, second exhibition of, 474
Iron, strength of, Hodgkinson and Fair-
burn's, 30

-, Heath's improvements in the manufac-
ture of, 37

case hardening of, (Baddeley) 52
action of sea-water on, (Mushet) 413
, planing of, 208

trade, Scrivenor's history of, review
of, 355

smelting, Richards's process, 472
-, cast, equal to steel, 480

railing, destructive galvanic action
upon, 50

Invention, British and French encourage-
ment of, 44

Inventions, Ancient: fountain pump, swim-
ming girdle and breeches, pole ladder,
(Heineken) 45; destroying smoke, illumi-
nating dials, planisphere, fire-engine,
(Trevelyan) 52; remarks on, 144
Ives's, mode of making metal-combs, 141

England's universal screw, 439; al-
leged piracy of Curtis's, 468, 526, 554
Jearrard's carriage retarder, 724
Jeay's, (Mr. J.) mode of finding the lengths
and bevels of the timbers in hip-roofs, 39
Johnson's metal frames for cravats, 474
Johnston's hinge making machinery, 263
Judkin's, (Miss) lace machine, 475
K.

Kater's, (Capt.) escapement, 724
Kentish, Mr. W. A., employment of Minas
Novas for lenses, 21; manufacture of sugar
by steam and in vacuo, 41; destructive
galvanic action on iron railing, 50;
Muntz's yellow metal sheathing 74; im-

vi

Leather, ornaments and mouldings, 96; dress-
ing and finishing of, Hickman and Daven-
port's patent for, 115; Buff, Moody's
166; samples of mauufactured, by Cox
and Herapath's process, 176, 208
Lefevre, French engineer, death of, 527
Letter balances, 176; Riddle's, 178; Miller's,
208; I. B., 232, 309, 304; Osler's, 304;
King's, 305; Burrill's, 419; Edward's, 420;
Hooper's, 456; Sir John Robison's, 488
rival manufacturers of, 715
Levison (Mr. J. L.), on cheap philosophical
apparatus, 249

Lenses, annular, for light-houses, apparatus
for cutting (Sang), 171

minas novas, 21

Life boat, Adams's, 313; Phillips', 314;
improvements in, 404

Light, Gurney's Bude, trial of, at the House of

Commons, with Report of Committee of
the House upon it, and extracts from mi-
nutes of evidence, 118
Lighthouse at Kirkcaldy, 169
Lightning conductors, see Ships
Linen, new mode of marking, 32
Lithography, Redman's improvement in, 755
London and country-made steam-engines,712
Longitude of Greenwich and New York,
143

Long's (Col.), wooden bridge, 323
Lyceums, institution of, 249

Hague's pneumatic, 446
Macsweeney's, Dr., instrument for restoring
suspended animation, 3

Madder, printing stuffs with, at Vienna, 176
Magnetizing power of solar rays; confirma-
tion of Mrs. Somerville's experiments, 751
Malthouses and breweries, construction of,
727

Malting, injurious effects of present fiscal
regulations on, 557

Manchester, engineering establishments of,

189

-, mills and factories of, 219
Mandril, expanding, 676
Manure, value of bone-dust as, 176

"" oil from wool proposed for, 176
boiled bone-dust used for, 208
Manufactures, rise and progress of, 368
Marble, stone converted into, 368
Mars, right ascension and declination for
July, 1840, 239

Matches, new French phosphoric, mode of
making, 108

Materials, strength of:

wood, (Hodgkinson,) 30
iron, (Fairbairn,) 30
Mathematical instruments, Treatise on box
of, by T. Kentish, review of, 22
Matter, supposed inherent activity of par-
ticles of, 509

Measures, errors in stamped, 224

--, death of assistant editor

and publisher, 772
Medals, copying, by Spencer's galvanic pro-
cess, 54, 203

Melville's ship propellers, 320

Mercury, saving of, in reducing silver, 282
Miller and Barnes (Messrs.,) and British and
Australian steam navigation, 271
Miller's patent fire-bars, 160

letter balance, 208

331,

liners, duration of passages of,

Nimmo's, (Messrs. P. and J.,) hydraulic
blow-pipe, 344

Norwich port, 255, 271, 304, 367
O

Oil paintings, copying of, 61
Olbers, death of, 527

Oldham, Mr. C. E., death of, 400, 448
Omnibuses, improvement in, 464, 496
-, ventilation of, 439

Organ in Birmingham Town-hall, improve-
ment in trumpets applied to, 676
Oxides, of lead and antimony, Pattison and
Losh's patent, 51

, white, of arsenic, obtained in Corn-
wall, 114
Oxley's, (Mr. Thomas,) claim to invention of
photogenic drawing, 75; plan of reefing
paddle wheels, 485

P

Muntz's yellow metal sheathing, 31, 74

Murray, John, Esq.; on the cause of steam-
boiler explosions, and their prevention,
368, 403; ink and paper, 398, 469
Munshett, David, Esq., on the action of sea
water on iron, 413

N

Names, injury to science by incorrect use
of, 692

Nelson's process of preparing gelatine, 742
Neville's artificial coal, 128

Newspaper, the reputed earliest, the En-
glish Mercurie, a forgery, 202
New York, difference between longitude of,
and that of Greenwich, 143

(French)-Heintz, cut of pantaloons, 688
Patent," use of the word on unpatented
articles, 715, 740

Patents, hardship of great cost of, 485

-, legal effect of exclusive licenses
under, 352

Patent law, state of, 390, 675, 741
Patents granted, English, October, 62; No-
vember, 158; December, 222; January,
319; February, 414; March, 495; April,
690; May, 771.

Scotch, October, 63; No-

vember, 159; December, 223; January,
320; Feburary, 415; March, 479; April,
690; May, 771

Irish, Sept., 79; October,
159; November, 224; December, 320;
January, 416; February, 496; March, 675
Patents, notices of American new, 14, 115,
140, 186, 301, 316, 472

—, French, delay in passing, 167
Pattison and Losh's patent for making ox-
ides of lead and antimony, 51 :
Paving, Colonel Maceroni, on, 10

wooden, Stead's, 64 ; Parkin's ditto,
257, 174, 741; Hodgson's ditto, (Count de
Lisle,) 261, 741

D'Harcourt's artificial granite, 79;

specification of, 174

-, Claridge's asphalte, 399
taking up of, 105

Payne's mode of stowing a water-logged
ship's provisions, 313

Peck-hammer, Gardiner's patent, 115

Pendulum, Frodsham's compound, 29

Penn and Son, Messrs., oscillating steam-

engines manufactured by, 705

Pencil, Riddle's ever pointed, 70
Penmanship, Paton's specimens of, 336
Peppercorne, Mr., On the supply of water

.

to the metropolis," review of, 766

Perkin's steam boiler, 473

Perry and Co.'s filter ink stand, 338

Phillips's life-boat, 314

Photography or Daguerrotype :

Effect of extreme red rays on photogenic

paper, Herschel, 28

Downie's improvement, 48
claim to invention of, by Mr.

patented in England notwith-
standing premium paid in France, 77
new process by Dr. Schafhaeutl,

80

employment of paper in, 192
improvements in, 256
use of at Rome, 400
Pianoforte, Pape's patent table, 63,
Pictures, printing of, Mr. C. Hancock's pa-
tent process, 568

Mr. Contencin's method, 687

Pin Factory, Edelston and Sons', 63
Pipes, improvement in making, Cutler's,
237

Platina, melting large quantities of, Dr.
Hare, 236

Platow's automaton coffee urn, 434
Pneumatic engine, American, 753
Postage, penny, 254, 738

-, stamps for, 438, 479, 738,

760
Prater Horatio, Esq., on the supposed iden-
tity of electricity with chemical affinity, 178;
on the inherent activity of particles of mat-
ter, 509

Printer's improved composing stick, 409, 521

Printing, Savage's Dictionary of, 746
old processes in, 750

ix

Pulley rack for blinds, Loach and Clarke's
patent, 700

Pulleys, machine for grinding rims of,
Whitelaw's, 193

Pamp, Rice's, for lifting gravel, 118
-, new compressing, 416
rope. See Hydraulic Belt
Pumping, numerical case in, 674
Pyrites, iron, demand for, 448
Q.

Querns, ancient, and modern mills, 754
Questions, astronomical, 139; answered, 182
-,183; answered,284,

271, 273, 331, 410, 454, 702, 740

687

Rennie, Geo. Esq., experiments by, with his
conoidal and trapezoidal ship propellers,
172, 199, 227, 310, 274, 351, 536
Rice's pump for lifting gravel
Richemont's autogenous soldering process,
546, 729

Rigel's mode of steering steam-boats, 757
Rhinoceros, Indian, the Unicorn of fable,
692

Ringgold and Earle's process for preserva-
tion of timber, 117, 141

Ring's self-closing swinging bridge, 303
Richard's process of smelting, 472
Riddle's letter balance, 178

Roads, Metropolis, annual expenses of, 756
Robert's mode of reshipping rudder at sea, 79
Roberts, inventor of the miner's hood, &c.,
labours and death of, 691

Robertson, Mr. W. A., death of, 772
Robinson, Sir John, best mode of burning gas
for heating purposes, 291; for illumina-
tion, 340; mercurial letter balance, 488
Rocks bored by chemical means, Mr. Pri-
deaux, 114

Rollers, Printing, composition, 748

Roofs, hip, mode of finding length and bevels
of rafters of, Mr. Jeay's 39,
Duval's metal, 140

Root's punching machine, 472
Rope, wire, 437

Royal George, operations on, 109, 139, 411,
443

Rudder, mode of reshipping at sea, Mr. Ro-
berts's, 79

Russia, vapour baths of, 71

—, manufactures of, 304
Ruthven's steam boiler, 156

S.

Saddle seats, substitute for hogs' skins for,
308

Sang, Ed. Esq., description by, of apparatus
for cutting annular lenses for light-houses,

171
Sankey, Wm. S. V. Esq.; new cyclometer,
41; remarkable primary property of the
equilateral triangle, 560

Saunders's improved bookbinder's rolling
machine, 5

Sawing, Dodd's patent apparatus for curved,
320

Saws, annular, Grant's patent, 302

circular, Sellick's, patent for cutting
teeth of, 140

machine for setting teeth of, 347, 416
Scientific Associations abroad, 16
Scientific books, practical deficiencies of,
565; defective illustrations of, 680
Scrivenor's History of the Iron Trade, 355
Sea, attempts to ascertain depth of, by echo,
Jones's, 299, 330

instrument for ascertaining tempera-
ture of, at great depths, 286; temperature
of, 676

Seasons, permanence of character of, 144

Sliding rule (see Calculator); right angle
triangles, resolved by (Pole) 165; (T.
(Kentish) 269

cheap, T. Kentish, 269

Mr. T. Woollgar's Treatise on,
and piracy of, by Laker, 521, 722
Smeeton's button-shank, 697
Smith's, (Captain) paddle-box boats, 1, 480
Smith's, (Mr. William) gun carriage, 13
Smith, Mr. Enort, on Moody's buff leather,
166

Soap, impolicy of duties on, 155

frauds in, and inutility of admixture
of silica or clay, 723

Societies, see Institutions

Soda water fountain, atmospheric, Swan's
303

Solar system, new, (Heath) 185; remarks
on, 218, 224

-rays, magnetizing power of certain, 751
Soldering, Richemont's autogenous, 546
theory and practice of, 729
Somerville's, Mrs., experiments on the mag-
netizing power of certain solar rays con-
firmed, 751

Soundings, submarine register of, 83
South, Sir James, on the shooting stars of
August, 126, 128

Spencer, Thomas, Esq., on engraving by
galvanic precipitation, 54; on the theory
and practice of soldering metals, 729