I N D E X. 



Knight, A. Efq. en the Fecundation of Munich, Kitchen and Brewery at, ]61, 

 Vegetables, 458, 519 ir,6 



Muriate of Soda, its Decampolition, 470 



Lair, Citizen, on the fpontaneous Com- 

 buftion of Human Individuils, 305 



Lake Erie, Mifcellaneous Obfervations re- 

 lative to, 539 



Lamaik, Cit. on the Influence of the 

 Moon on the Atmofphere of the Earth. 

 488 



Lamp, Hydroftatic, of Mr. P. Keir, 4G7. 

 With a Float, by Rob. Hooke, 468 



Lamp for burning Tallow, 365 



Le Btck, Henry J. His Account of the 

 Pearl Fiftiery in the Gulpli ef Manar, 

 b-V> 



Lcibnitr, 37 



Leroi, Alphoiiius, on the internal life of 

 Phofphorus, 84 



Lefiie, Mr. John, his Photometer and Hy- 

 grometer, 461, 518 



Level, Spirit, grinding of, 396 



Light, on its Reflexibility, 232 



Lightning, fingular Accident by, 432 



Lime, on the difterent Sorts ufed in Agri- 

 culture, 440. Sulphuret, of its Ufe in 

 Bleaching, 253 



Lincolnfliire, fubmarine Foreft on its Coaft, 

 216 



Linfeed Oil, to clear it from Mucilage, 

 345 



Lint, mechanical Fabrication of, 22 



Logarithms, Callet's Stereotype Tables of, 



' 44 



Lomet, on Crayons, 406 



London-Bridge, Dodd's Projeft for im- 

 proving it by an Arch of 300 Fett fpan, 

 135 



M, 



Mabillon, Father, 207 



Machine for engraving Copper-Plates, by 

 Rochon, 65 



Machines for Hat-making on, 28 



Macie, Mr. 57 



Manures, Middleton on, 340 



Mars, Oppofition of, 331 



Meafure, invariable, 29 



Mcal'ure of the Meridian of France, Re- 

 port on, 316, 365 



Men, their Strength cftimated, 416 



Mercury, fulminating, 236 



Mercury in Sea Salt, 375 



Metals, their mutual Ai'^ion, 309 



Metrical Syfttm of France, 310, 365 



Middleton, John, Efq. on Manures, 340 



Mineralogical Society, 138 



Mineralogy, by Dr. Babington, 428 



Moon, its Influence on the Atmofphere of 

 the Earth, 488 



Monge on the Apparent Attraftion and 

 Repulfion of Floating Bodies, 269 



Montucla, 380 



More, Sam. on the Power of Horfes, 136 



Motions, perpetual, 126, 172 



Mountains in the Cevennes, Fertilization 

 of, 295 



N. 



Newton, Sir Ifaac, 222 



Neuheuiel Brewhoufe, its Boiler defcribed, 



166 

 Nitric Acid, 325 

 Nitrite of Potalh, 326 

 Nitrous Oxide, 515 

 Nomenclature, Chemical, Dr. Pearfon on, 



476 

 Notcutt, Mr. 41, 95, 137 

 Nutrition of fucculent Vegetables, 1 

 N. W. on Barometrical and Thermomefri- 



cal Perpetual Motions, 126, 172. His 



New Gridiron Pendulum, 205 



Odeon at Paris, Remarks on its Confla- 

 gration, 306 



Oils, changed by Oxymuriate of Potafli, 

 160 . 



Oils, Inflammation of by Nitric Acid, 327 



Organ Pipes, 16 



Oxide of Azote Gafeous, its Refpirability, 

 55, 93 



Oxygen, erroneoufly fuppofed to Exift In 

 Snow, 119 



Oxymuriate of carbonated Potafti, ufed to 

 brighten Colours, 158 



, P. 



Palaemon, Rhemnius Fannius, de Ponde- 

 ribus et Menfuris, 20 



Pafieraphy, 283 



Pearl Filheiy, Account of, 545 



Pearfon, Dy, on Chemical Nomenclature, 

 476 



Pearfon, Rev. Wra. on the Philofophical 

 Ufes of a common Watch, 49, 189 



Peas, curious Experiments on their Im- 

 provement, 458, 519 



Pendulum, invariable Meafure from, 29. 

 Method of obviating the Refiftance of 

 the Air againft, 523. New Gridiron, 

 205 



Pepys, Mr. Junr. 138 



Pelchier, Dr. 168, 171 



Petrie, Wm. El<]. on a fingalar Accident 

 by Lightning, 432 



Petuntze analyzed, 265 



Pewter, on its Finenefs, 356 



Phofphorus, its powerful £ii'e£is as a Me- 

 dicine, 84 



Photometer, New, by Mr. John Leflie, 

 461, 518 



Pitcoal, its comparative E^eft as Fuel, 166 



Planetary Syftem of the Particles of Bodies, 



~ 234 



Plates of Glafs, Chtadni on their Vibration, 

 185 



Plumb Line and Spirit Level, 396 



Poifon, anciently ufed for Arrows, 390 



Pottery, Vauqutlin on, VC4 



55^ 



Pott, Profeflbr, Defcription of his Fur- 

 nace, 344 

 Powder Proof of Regnier, 198 

 Prevoft, Profeflbr, on Light, 222 

 Printing, 61. Stereotype, 44, 62,71 

 Front. A. on Typography, 379 

 Prouft, on Nitric Acid---Oxideof Azote— - 

 IndigO"-Nitrite of Pota(h---RefKlue of 

 Ether-— Inflammation of Oils by Nitric 

 Acid— -Ammoniac ---Putrid Water at 

 Sea, 325. On Native Iron of Pcitl, 

 374. Mercury in Sea Salt, 375 

 Pyrites, their daily Formation, 84. Ar- 

 tificial, 426 

 Pyrometer, piece of Wedgwood analyzed, 

 265 



R. 



Ramfden, fome Particulars of a Balance 



made by him, 101 

 Reflexibility, 222 

 Refraftion, Horizontal, its Uncertaint)', 



140. Unufual Effeas of explained by 



Viiice, 142 

 Regifter Doors, 167 

 Regnier, his Powder Proof, Dynanomeler, 



Safeguard for Mufquetry, and Elcftrical 



Machnie, 198 

 Refonant Figures of Chladni, 185 

 Refplration of the gafeous Oxide of Azote, 



ftrange Eff^efts produced by, 446 

 Richardfon, Mr. 41, 95, 137 

 Rittenhoufe, his Improvement of the Pen- 

 dulum, 523 

 Rochon on the Typographic Art, 61 

 Roederer, Cit. 283 

 Roman Foot, 201 

 Rome de rifle, 9 

 Rotation of the Earth, whether regular, 



30, 53 

 Roxburgh, Wm. M. D. on the Elaftic 



Gum Vine, 435 

 Royal Society, Tranfaftions of, 186 

 Rubies, their fpecific Gravities, 11 

 Rumford, Count, on the Management of 



Fire, 161. On a Lamp for TuUow, 365. 



On the Weight al'cribed to Heat, 381 

 Rankelrube, 237, 288 



s. 



Sage, B. G. on the Conflagration of the 



Odeon, 306 

 Salverte, Eufel)e, on the Invention of the 



Areometer, 89 

 Sandys, Capt, 184 

 Sapphiies, their fpecific Giavity, 11 

 Schaifhaufen Bridge, 427 

 Sea Salt, Mercury in, 375 

 Sedum Acre, Nutrition of, 2 

 Seguin, his Gazometer, 405 

 Sempervivum Teftoruni, its Nutrition, 1, .'} 

 Sheep and domeltic Animals, Experiments 



on, by Daubenton, 370 

 Sheldrake, Mr. T. on the Purification of 



Linfeed Oil, &c. 345 

 Shells, their Analyfis, by Charles Hat- 



chett, Eli^. 500, 529 



Ships 



