5^0 



Light and Heat, Experiments on, by Mr. 



Leflie, 344, 416 

 Lime in the Nut Gall, 382 



M. 



Machine, hydraulic, at Schemnitz, 18 



Machine for kneading Dough defcribed, 281 



Mackenzie, Sir Geo". Stuart, Bart, on the 

 Combuftion of the Diamond, the Forma- 

 tion of Steel by its Combination with 

 Iron, &c. &c. 103 



Macquer, 154 



Magnetic Dip at Prince of Wales's Ifland, 

 ISi 



Magnetifm, Thoughts on, by R. Kirwan, 

 Efq. 90, 94 



Manar, Pearl Fifliery at, 21 



Marggraf, 50, 52, 34, 308 



Mafkelyne, 329 



Mafon, 329 



Mathefius, 2 



Mayer, 169, 270, 329 



Mechanics, an Apparatus for teaching, 

 defcribed. 443 



Mellite, Analyfisof, 515 



Memoir on the Difcovery of certain Bones 

 of a Quadruped of the clawed Kind, by 

 T. Jefferfon, Efq. 66 



Mercury, on the Purity of, 159 



Mercury, black Oxide of, Tefts for, 1 60 



Mercury, red I'ulphurated Oxide of, 160 



Mercury, nitrated Oxide of, its Properties 



^ when Pure, 161 



Mercury, white Oxide of, Teft for, 161 



Mercury, fweet Muriate of, Teft for, 

 160, lol 



Mercury, yellow Oxide of, frequently con- 

 tains fulphuric Acid, 161 



Mercury, corrofive Muriate of, 162 



Mercury, red Oxide of, 1 62 



Mercury, fulminating, Mr. Howard on, 

 173, 200, 249 



Mercury, on the Solutions and Precipi- 

 tates of, 405 



Mercurialii perennis, or Dog's Mercury, 

 on the colouring Matter of, 76 



Metals, Obfervations on the chemical Ac- 

 tion of different, upon each other, at 

 the common Temperature of the Atmof- 

 phere, 120 



Meyer, 30 



Milk, fee Animal Fluids. 



Miller, Rev. G. Obfei-vations on the Theory 

 of eleftric Attrailion and Repulfion, 

 461 



Mitouard, 103 



Monge, 86. His Geometrie Defcriptive, 

 192_ 



Mortjiftg and Evening Dew, on the Phe- 

 nomena of the, by C. A. Prieur, 86 



More, 165 



Morris, Mr. 85 



Montucia, 385 



Muriate of Mercury, fweet, 160, 161. 

 Corrofive, 162 



Muriatic Acid, Experiments to Decompofe, 

 209, 245. On its Formation, Nature, 

 &c. 377, 378 



Mulhet, 105, 107 



I N D E X. 



N. 



Nainie, 265 



NancaiTow, Mr. John, his Steam Engine, 



operating by a feparate Condenfer, de- 

 fcribed, 545 

 National Inftitute, Account of the Prizes 



offered by. See Prizes. 

 Needle, the Magnetic, Method of afcer- 



taining its Inclination, 521 

 Newcomen, 1 1 1 

 Newton, 78, 84, 141, 200, 219, 386, 



392 

 Nicholfon, 255 

 Nine-Killer, Account of a remarkable 



Bird lb called, in a Letter from Mr. 



Heckewelder to Dr. Barton, 73 

 Nitrated Oxide of Mercury, how to Deteft 



when impure, 161 

 Nitrous Oxide, on the Experiments with, 



75. See alfo Beddocs. 

 Nut Gall contains Lime, 382 



o. 



Obfervations on the Proofs of the Hut- 

 tonian Theory of the Earth, as adduced 

 by Sir James Hall, Bart. ByR. Kirwan, 

 Efq. 97, 153 



Obfervations on the Caufes of the Galvanic 

 Phenomena, &c. 337, 394 



Obfervations on a Method of reftoring the 

 Utility of Wells, 481 ' 



Oil found in crude Iron, 356 



Ore, Lead, Analyfis of, 219 



Ornithorhynchus paradoxus, Obfervations 

 on the Head of the, 506. Blumbenbach's 

 Sketch of, 555 



Oxide of Antimony, fee Antimony. 



Oxide of Mercury, black, 160. Nitrated, 

 how to afcertain when Pure, 161. Red, 



- 162. White, Teft for, 161. Yellow, 

 161 



Oxide, Nitrous, Dr. Beddoes, on the Ex- 

 periments with, at the Royal Inftitution, 

 75 



Oxigenated Muriatic Acid, on the Power 

 of, in Vegetation, 140 



Pacts van Trooftwyck, 137 



Paff, 74 



Pallas, 61 



Parhelia, ancient Account of, 178 



Parkinfon, James, his Manual of Chemiftry, 

 47 



Pauli, 2 



Pearl Fidiery, 21 



Pearfon, Rev. Wm. on a fingular Inftance 

 of Fecundity, 85 



Pearfon, Dr. 170 



Pelletier, 30 



Pennant, 74 



Phenomena, Account of certain, ob- 

 ferved in the Air Vault of the Fur- 

 naces of the Devon Iron Works ; to- 

 gether with fome praflical Remarks on 



■ the Management of Blaft Furnaces, by 

 4 



Mr. Roebuck, in a Letter to Sir James 

 Hall, 110 



Philofophical Tranfaftions of the Royal 

 Society of London for 1800, Account 

 of, 239. Ditto Part I. for 1800, Ac- 

 count of, 332. Part XL Account of, 

 379 



Phlogifton, Prieftler on, 240 



Phofphoret of Carbon, 355 



Phofphorus, Bolognian, Note relative to, 

 336 



Phofphorus, Method of obtaining, by the 

 Phofphate of Lead, 382 



Piaet, r57, 530 



Pierce, 63 



Pile of Volta, 241. On the chemical Ef- 

 feas of, 472, 514 



Pile, Galvanic, on a new Mode of con- 

 ftruaing, 342 



Pitchford, Mr. J. on the Decompofition of 

 the Muriatie Acid, 374 



Plane, underground inclined, at Walkden 

 Moor, defcribed, 486 



Pliny, 63 



Pneum, kt Alkali; zMo HeSlh. 



Power, on the Extent of, in Telefcopes. 

 See Herfchet. 



Premiums offered by the Board of Agri- 

 culture 476 



Prieftiey, 167, 170, 137, 208, 274, 371 



Prjpftley on the Produaion of Air by freez- 

 ing Water, 193 



Prieur, C, A. on the Phenomena of the 

 Morning and Evening Dew, 86 



Prize of Altronomy, by the Board of Lon- 

 gitude, in France, 329 



Prizes offered by tlie Clafs of Mathematical 

 and Phyiical Sciences of the National In- 

 ftitute, 477 



Projca for extending the Breed of fine- 

 wooled Spanifli Sheep, 289. French 

 Advertifcment relbeaing, 292 



Prony's Memoir on tlie Ufe of the SyphoH 

 for railing Watei-, 283 



Prouft, Cit. his Memoir on feverSl in,- 

 tercfting Points in Chcnfiftry, 350 



Pruffiate of Pot-afli, 171 



Pumps, new Air, by Mr. Clare, 264 



Pyrenneans, Remarks on their Strufture, 

 526 



Pyrites of the Incas, Experiments on, 

 357 



Queftion refpeaingthe Purification of Cop- 

 per for alloying Gold, 235 



Queftion propofed by the Royal Society of 

 Copenhagen, 332 



Quotients arifing from the Divifion of an 

 Unit by prime Numbers, 402 



R. 



Rational Toys, Hints refpeaing, 287 

 Raymond, Cit. on fome newly difcovered 

 Properties of phcfphorated hydrogen Gas, 

 474, 483. On the Struaure of the Up- 

 per Pyrenneans, ii'ZQ 



Rays, 



