446 INDEX. 



logy for the postscript on refraction, in answer to his remarks, 

 390-396 



Javal (M.), experiments of on some combinations of gold, 

 318,319 



Kater (Capt. Henry), observations of on the construction of a 

 balance, 40, 41 — on the comparison of various British stand- 

 ards of linear measure, 130 — on the best kind of steel, and 

 form for a compass needle, 132 — notice respecting a volcanic 

 appearance in the moon, 133 — and of his account of the re- 

 measurement of the cube cylinder and sphere, used by the 

 late Sir George Shuckburgh Evelyn, in his inquiries concern- 

 ing a standard of weights and measures, 393 



Klaproth (Martin Henry), contributions of towards the chemical 

 knowledge of mineral substances, 29 — analysis of the ferro- 

 arsenical sulphuret of copper, 29-31 — of an antimonial sul- 

 phuret of copper, 32-34 — of a cupreous sulphuret of lead 

 and antimony, 34-36 — of the sulphuret of bismuth and cop- 

 per, 36, 37 — of the blue iron ore of Eckartsberg, 38 — of 

 granular chromic iron ore from Steirmark, 39, 40 — of cererit, 

 262-264 — of the oxide of cerium, 264, 265 — of a compact ore 

 of titanium from Arendal, 265, 266 — of the topaz, 266 — par- 

 ticularly the Saxon topaz, 266-268 — of zoisit, from Carinthia, 

 268, 269 -of the foliated augite of Carinthia, 269, 270— of 

 conchoidal apatite, from Zillerthahl, 271,272 — of the co- 

 lumnar brown-spar of Mexico, 272-274 — of dolomite, 274 — 

 of anhydrite, 275 — of the green earth of Verona, 276 — 

 of the alum stone of Tolfa, 277 — and of that of Freienwald, 

 277-282 



Larch-tree, use of in tanning, 406 



Latitude, method of computing, from two altitudes and the time 

 intervening, 389, 390 



Lead, and antimony, analysis of a cupreous sulphuret of, 34- 

 36 — its increase of weight, in calcination, accounted for, 295- 

 297 — on the disappearance of the celestial heat in, 297-299. 



Lightning, effects of, 414 



Li^erotere, miscellaneous intelligence in, 193, 194,\430-432 



Lithography, application of to the taking of impressions from 

 plants, 405 — progress of, at Munich, 431 



London, evils resulting to the inhabitants of, from smoke, 343 — 

 state of them in the seventeenth century, 343, 344 — in the 

 eighteenth century, 345 — and at the present time, 346 — 

 remedy suggested for, 347 — account of various expedients 

 for consuming smoke, 348-354 



