373 IN DE X. 
Klaproth on native cinnabar, 146 
Knight on alburnous vessels of 
trees, 120 
Lazrange on turquoise, 220 
Lalande’s history of astronomy 
for 1805, 2375 347 
Laugier on meteoric stones, 11 
Learned Societies, 88, 179, 266, 
395 
Lectures, 283, 374 
Le Roy’s memoir on chroaome- 
ters, 40, 129, 193 
Leschevin on averting hail storms, 
212 
Levelling. On, 243 
Lichen islandicus very nutritious 
as food, 
Light. Effects of, on fat, 72; 
affinities of bodies for, 151, 
292 
Linen. To varnish, 3 
Linseed o:/. Boiled, to prepare, 4 
Liverary intelligence, 93, 171,176, 
186, 190, 264; 272 
Litharge. To detect, in wine, 
362 
Lloyd's patent, Ig 
Longitude. On chronometers for 
determining, 40, 129, 193; 
on degrees of, 240 
Lunar planispheres. Russel’s, 264 
Luttick, Society at, 89 
Lycopodium seeds. On, 188 
Magnitism. On, 45, 3493 prize 
8 
questions, 
Malconformation. Singular cases 
of, 275, 281 
Mat:bey's patent, 286 
Meat, salt, On preserving, 92 
Mechanical power. A patent, 94 
Medicinal preparations. On, 72, 
105 
Medicine, pneumatic. On, 69, 257 
Memory. Art of, 282 
Mercurial cintments. Qn, 1095 
Meridian, On arc of, 239 
Meteoric stgnes. New principle 
in, 11, 37% 
Meteorology, 96, 192, 212, 288, 
375 
Millstones, 133 
Minium, native. On, 114 
Mist. Efficts of, on vision, 31 
Montauban Society at, 89 
Mountwzins. A work on, ° 93 
Muriatic acid. On compositioa 
of, 372 
Muscular mo!ion. On, 180 
Mushrooms. On, 272 
Musi:. Yarey on, 171 
Navigation. On chronometers 
for, 40, 129, 193 
Nauche’s test for wines, 362 
Newcastle Society, 270 
New York, Latitude of, 247 
Nicho!son's patent, Igl 
Oil, boiled linseed. To prepare, 4 
Oils. Patent for purifying, 286 
Oil, poppy.» Valuable subs:itute 
for olive oil, 331 
Olbers on a comet, 373 
Opiics. Facts applicable to, 151, 
292 
Oxymuriatic acid fumigatious. On, 
71, 81 
Park, Mungo. News of, oI 
Passions, the. A prize question, 
9 
Patents, 94, 191, 286, 374 
Peirson on muscular motion, 180 
Percussion. Wollaston on, 229 
Perspective. Patent instrument 
for drawing in, 286 
Phosphorized fat. On, 75 
Pinel on fumigation, 81 
Plants, On distilling waters from, 
6; on growth of, 120; on 
food of, * 317 
Platina. On, 371 
Pneumatic medicine. 69,257 
Poppy. On cultivation of, 331 
Porcelain. On, 68 
Prati's patent, 94 
Printed goods. Patents respect- 
Ing, 94,95 
Prize questions, 89, 188 
Prosser’s 
Be rey 
eS, pa Be a Oe 
