Humbold, 151 



Hunter, Mr. John, 240 



Hutton, Dr. 67, 229, 331 



Huygens, 76, 87, 91, 173 



Hydraulic engines, 1 



Hydrocarbbnates, its combuftion in oxigen 



gas, 44 

 Hydrometer, defcription of Atkins's, by 



J. Fletcher, Efq. 276 



IncombufHbles, 11 



Ingehhouz, 151, 158 



Ink, ancient method of composing, 147. 

 — Obfervations on the competition of, 

 by Mr. W. Clofe, 145. — Preparation 

 of indelible, by Mr. T. Sheldrake, 

 237. — Receipts for the compofition of, 

 146 



Iron, chromated, its difcovery in France, 

 64. — Native malleable, 260.— Obfer- 

 vations on its converfion into fteel, by 

 Dr. Prieftley, 233 



Inftrument, defcription of an, to meafure 

 the force of the blaft of bellows, 272 



Instruments, hiftory of, for fhewing mi- 

 nute quantities of electricity, 288 



Jamefon, Mr. Robert, on granite, 225 



Jefferfm, Mr. 140 



Jones, Edward, Efq. on the deftru&La 

 of the grub of the cockchafer, 73 



Jordan, Profeffor, 63 



K. 



King, 175, 217 



Kite, incident of a, deftroyed by a weazel, 



75 

 Klaproth, 192, 197, 293 



L. 



Lachenau, Haflel, his new procefs for 



claying fugars, 187 

 Lalande, 48, 52. — His aftronbmical prize, 



141 

 Lamp, defcription of one upon Argand's 



principle, by Citizens Carcel and Ca- 



ieau, 108 

 3 



INDEX. 



Landriani, Chevalier, 63 



Lange, Citizen, 109 



Lavoifier, 10, 70, 95 



Lenoir, 248 



Lethehyey, Captain, 63 



Lewes, Mr. 107 



Light, emitted from bodies, Dr. Hulme 

 on, 31. — Obfervations on the theory of, 

 by Dr. T. Young, 78. — Anfwer to 

 Newton's objections to the undulatory 

 fyftem of, 90. — Its exigence in com- 

 buftibles, 94. — Experiments on the 

 fpontaneous emifiion of, from various 

 bodies, by Dr. Nathaniel Hulme, ioo„ 

 —Remarks on the theory of, by Dr. 

 Young, 162 



Lime, its precipitation by an infufion of 

 tan, 71 



Lithophylacium Bornianum, 258 



M. 



Maclane, Mr. 257 



Mageas, 166 



Magnefia, experiments on the production 

 of the carbonate of, by Dr, Campbell, 

 117 



Magnetifm, its galvanic effects, 62.— f 

 Experiments on, by Citizen Coulomb, 

 143 



Mamoth, remarks on the, by Louis Va- 

 lentine, 138 



Mandreporae, formation of, 253 



Mayow, 10 



Meafures, tables of the French, 250 



Melfier, 58 



Metal, new, 178, 180 



Meteor, account of the explofion of a, 

 near Benares, 255 



Metre, comparifon of the French defini- 

 tive, with an Englifli ftandard, 244 



Meyer, 98 



Michell, 170, 174, 227 



Mill for grinding hard fubftances, by Mr. 

 G. Terry, 206 



Mineral fubftance, analyfis of a new, by 

 Charles Hatchett, Efq. 129 



Mineral, analyfis of a, from North Ame- 

 rica, by Charles Hatchett, Efq. 176 



Mineral, 



