550 



Dance, Geo. Eiq. his Snrvey of the Plan,- 

 &c. of Mr. Dodd, for improving Lon- 

 don Bridge, 13Y 



•JD'Arcy on Vifion, 33 



D.ivy, Mr. H. on the Refpirability of Ga- 

 feous Oxide of Azote, 55, 93. On Silex 

 in Vegetables, 56, 138. On the Forma, 

 tion of Refpirable Nitrous Oxide, 515 



Daubenton, on Sheep and other Animals, 

 370 



Danc'us Carota, IC8 



Decandole, A. P. his Account of De- 

 faufi'ure, 178 



Deriabin, Mr. 37, 39 



DefaufTurr, Life of, 178 



Devahic, or Cubit pf the Nilometer, 33 1 



Dew, 3 



Diamond, Guyton on its Combuftion and 

 Compofitiun, UBS. Its Application to 

 Steel-making, 353 



Didot's Stereotype Publications, 44 



Dif>', Mere of. Account and Analyfis of 

 its Water, 77 



Diltillatlon by Cold, 521 



Djze on Ether, 43 



Dodd, Mr. his Plan for admitting Ships 

 above London Bridge, 135 



Doors, Regifter, IG7. Regulating, 168 



Duhalde, O'l 



Dyeing, colours, brightened by Oxymu- 

 riate, 159. HauiTman on, 17(5 



E. 



£arth, whether its Rotation be regular, 



30, 53 

 l;arths, their Mutual Aftions, 419, 483 

 Earthquake in Peru, 377 

 Edwards, the Rev. John, on the Conftruc- 



tion of Metallic Speculums, 490, 525 

 Eifenrahm, 456 

 Eiienmann, 457 

 Elaftic Gum, 435. Gum-Vine, 534. Ufes 



of its Milk, 535 

 Eleftrical Machine, Pocket, 4 

 Eleflricity, Adams on, 476 

 Elephant, curious Particulars refpefling its 



Hiftory, 185, 247 

 EUicott, Andrew, his Obfervations on tlie 



Wcftern Parts of Pcnnfjlvania, 539 

 Emeribn, 51 

 Eolus, Harp of. Account of its EfFefls, 



Sec. 310 

 Efcapemcnt, Crank by Mr. S. Goodrich, 



342. By Soumille, 416 

 Ether, Reaification of, 43. Diftilled by 



Cold, 524. Sulphuric, 326 

 Eveivn, Sir G. S. 32, 34, 97, 147, COO, 



243 

 Expanfion Bars, compound, Piojeil for a 



iirll Mover with, 127, 172 



Fabroni on the Afliou of Metals called 



Galvanic, 309 

 Farm, the King's at Windfor, 422, 429 

 Fvcundation of Vegetables, Knight on, 



458,519 



INDEX. 



Fell, Mr. J. his Pocket Eleflrical Ma- 

 chine, 4 



Fertilization of the Mountains of theXJc- 

 vennes, 295 



Figures, Refonant of Chladni, 183 



Fire-Places, Conftruftion of, 162, & feq. 



F'ifhes, their Power to deprive Water of 

 Oxygen, 119 



Floating Bodies, their Motions, 269 



Fluids, latend Motions of, 13, 59. Sprout- 

 ing, 20. Refiftanceof, Experiments on, 

 by the Rev. S. Vince, 506 



Fly, the Infcft, Vibrations of its Wing 

 counted, 33 



Fordyce, Dr. Geo. his Pendulum, 30, 98 



Forfylh, Rev. Alex. John, on the Oxyge- 

 nated Muriatic Acid, 158 



Fourcroy, Cit. his Error refpeSing Mayow, 

 103 



Foreft, Submarine on the Coaft of Eng- 

 land, 216 



Franklin, Dr. his Invention for Printing, 

 63 



Fuel, Generation of Heat by its Combuf- 

 tion, 161. Great Savings of, 162 



Furnace, of Profeflbr Pott, 344. Of Cit. 

 Lecour, 547 



Furrt, the Printer, 62 



G. 



Gallic Acid, its Quantity in various 

 Vegetables, 392 



Galvani, 235 



Galvanifm, Fabroni on, 309 



Gaii;s, found through a Pipe, 43 



Gazometer, of Seguin, 405 



Ged, William, his Stereotype Printing, 

 44, 62 



Gibbes, Dr. 41, 95, 137. On the Bath 

 Waters, 359, 403, 452 



Glafs Plates, Chladni on their Vibrations, 

 185 



Glals, Soldering of, 522 



Goodrich, Simon, his Crank Efcapemcnt 

 for Clocks, 342, 416 



Gough, Mr. on the Nutrition of Succu- 

 lent Vegetables, 1 



Graham, Geo. his Length of the Seconds' 

 Pendulum, 33. His Standard, 200 



Gren, Air. ibme Account of, 94 



Grcville on Corundum, 5 



Gridiron, Pendulum, 203 



Grubcnman, Ulric, 427 



Gunpowder, Proof by Rcgnler, 198 



Guyton, Cit. Experiments on the Com- 

 buftion andCompofition of the Di.^mond, 

 298. On the Formation of Steel by 

 Means of this Subftance, 353. On the 

 Affinities exerted by the Earths on each 

 other, 419, 483 



H. 



Harris, Mr. his Beam, 106 



Harris, Mr. Stephen, 182 



Harp of Eolus, 310 



Hafienfratz, 89 



Hatchett, Charle*, Efq. Analyfis of the 



Water of the Mere of Difs, 77. On 

 Shell and Bone, 500, 529 



Hat-making, Report on the Procefs of, 23 



Hat-making, 73 



Hatton, Mr. his Pendulum, 30, 98 



HauflTman on Dyeing, 176 



Hauy, 9 



Heat, Experiments by Count Rumford on 

 its fuppofed Weight, 381. Generation 

 of, 161. Radiant, 162. To confine^ 

 163 



Henry, Mr. W. 41. On Sugar, on Ba- 

 rytes and Strontian, 168. Analyfis of 

 an Ore of Iron, 454 



Hermbftadt on the Produftion of Sugai' 

 from indigenous Plants, 333, 410 



Herfchel, Dr. 30, 52 



Higgins, Mr. William, his Improvement 

 of the Chemical Proceis of Bleaching, 

 253 



Hill, Aaron, on Beech Oil, and other In- 

 ventions, 229 



Hooke, Rob. his early Developeraent of 

 the Antiphlogiftian Theory, 497. His' 

 very curious Lamp, 468 



Hope, Dr. 170 



Hori'es, their Strength cftimated, 416 



Howard, Mr. Ed. his fulminating Mer- 

 cury, 236 



Hull and Beverley, Vicinity of, its Geo- 

 logy, 285 



Huyheus, 29 



Hydroftatic Lamp of Mr. Peter Keir, 467 



Hygrometer, New, by Mr. John Leflie, 

 461, 518 



Hypacia, invented the Areometer, 89 



I. 



Indigo, curious Experiments on, 478 



Indigo, Prouft on, 325 



Inflammation of Oils by Nitric Acid, 327 



Ink, Improvement of, 158 



Inftitution for diffiifmg Mechanical Know- 

 ledge, Conftitution of, 45, 283 



Inftltute of France, 329 



Integers of Mcafu re, 157 



Iron, Ufe of its Oxides in dyeing Cotton, 

 92. Chromate of, 314. Combined 

 with Glafs, 132, with Carbon, 133, with 

 its own Oxide, 133. Convcitcd into 

 Steel, by Means of the Diamond, 353 



Iron, native of Peru, its fingular Clearnefs 

 of Suiface, 374 



Jacquin, Prof, on Sugar from Carrots, &c. 

 168 



Jamefon, Mr. Robert, his Experiments oa- 

 Saponaceous Compounds, 108 



K. 



Kaolin Analyzed, 265 



Keith, Alex. Efq. his Theriaometer, 268 



Kelly on Spherics, 140 



Kent, Nath. Efq. on his Majefty's Farm 

 at Windibr, 422, 429 



Kettle for boiling Inflammable Fluids, 514 



Kirwan, Mr. ICG, 170. On the Propor- 

 tion of Acid in Salts, 210 



Klaproth's Analyfis of the Spinel, 349 



Knight, 



