INDEX. 



I, 



James's powder, Chencvix on, 22 

 Illogan in Cornwall, new hydraulic engine 



at, 162 

 Indentations, folar, 18 

 Ink made fit for copying by addition of 



fugar, 147 

 Inftitute, national of France, 69 

 Iron, native blue oxide of, 153.— Neu- 

 tral phofphate of 238. — Arfeniatc of, 

 258.— /Thick, burned in oxigen, 320 



K. 

 Karften, Dr. 259 

 Kelly's book-keeping, 156 

 King, Mr. 99 

 Kirwan, 130 

 Klaproth, 234, 258 

 Knap, 34 



L. 



Labillardiere, his account of earth eaten 



by the new Caledonians, 152 

 Lacepede, 258 

 Lalande, Jeromon the catalogue of 50,000 



liars, 70,-195 

 Lanthorn, magic, great improvement in 



its ufe in the Phantafmagoria, 147 

 Lafterie, 159 

 Laughter, 150 

 Le Blanc, his method of obtaining large 



and fine cryflals, 191 

 Le Blond, 160.— His varnim, 267 

 Lectures at the Royal Inftitution, by Dr. 



Young, 239 

 T.eiievre, Cit. 238 

 Lens of Parker does not burn very fmall 



wire, 319 

 Leon, da Vinci, his oil painting, 264 

 Lewis, Dr. 261 

 Lichtenberg, 71 



Lime, pure, its crystallization, 302 

 Liquids, Parmentier on the methods of 



clarifying them, 228, 253. — Ufed by 



Herfchel in telefcopes inftead of dark 



glafles, 21, 224 

 Lomazzo, 264 



Loyfel on bleaching paper, 148 

 Ludlam, on the common fpirit level, 309 



m; 



Machine for railing ores from mines, hf 

 Mr. T. Arkwright, 313 



Macquer, 202 



Magellan, I. H. de, 319 



Magic Lanthorn improved in the Phaa- 

 tafmagoria, 147 



Magnet, faid to produce the fame eflvct 

 as the galvanic pile, 234 



Manufcript, eafy procefs for copying, 147 



Maratti, Carlo, 268 



Marchais, 119 



Mariti, 43 



Mafkelyne, Dr. 193 



Mayer, his circle of reflection, 5, 71 



Mechain, 70 



Mendoza, Mr. his improved rcflecTins 

 circle, 4 



Mercury curioufly oxided by galvanifm, 

 178. — Conduces heat downwards, 241 

 —Its red fulphuret in the humid way, 



■ 299. — Howard's fulminating, ib. 



Meffier on a comet, 69 



Metal, new, difcovered by Ch. Hatchet% 

 Efq. and called Columbium, 52 



Metals, Bennct on the electricity pro- 

 duced by their contact, 184 



Milk, paint, 212 



Mitchell, 71 



Molt, Baron de, 153 



Monge, ^1 



Monochord of — Huddleftonc, Efq. 3a© 



Moreau, St. Mery, 160 



Motors, electric, 136 



Mudge, his elcapement, 251 



Murray, Mr. John, on heat communi- 

 cated downwards through water, 165. 

 —His elements of chemirtry, 239.— 

 On the tranfmilhon of heat downwards 

 through fluids contained in veflels of 

 frozen water, 241 



Muiiate of tin, fuming, improved prepa- 

 ration of, 117 



Mufchcnbroeck, 204 



Mufcular motion, 203 



Mufical instruments, extreme accuracy of 

 tuning, 320 



Mufical found produced by barning hidro- 

 gen, 129 



