30° 



INDEX. 



Bowler's improved churn, 56 



British colo ucs. Premiums for 



improving, 112 



British Mineralogical Socie'y. 

 Labours of the, 8 c 



BrugnatellPs new method of pre- 

 paring nitrous ether, 274 



Buee On crystallography, 160, 

 222 



Byivatcr's patent, 393 



Caloric. Action of, on vitality 

 of animals, 3 



Calorific rays from the sun. On 

 velocity of, 309 



Carbon, affinity of, for clay, &c. 



41. W 



for 



275. 



33£ 



.06 



— . A prize question, 

 Carbcnat'- pj copper analysed, 87 

 Carre, (Dr. de),on vaccination, 



. 9 2 



Cassada worm, produces animal 



cotton 121 



Caterpillars. Ex per. on, 5 ; a 



prize questi 



191 



Catoptrical instruments of the an- 

 iients. On, 66, 176, 232,344 

 Chemistry. Premiums in, 105 

 Chlfneys patent, 307 



Chinese soy. To prepare, 260 

 Chlorosis. Cure of, 555 obser- 

 vations on, 56 

 Churchman's magnetic atlas, 283 

 Chum, improved, 56 

 Civilization ', a prize question, 



387 

 Clay. Affinity of, for carbon, 

 lime and iron, 41, 137, 339 

 Clifford, on Ham's theory, 159 

 Clouds. Stones from the, 16, 

 296 

 Cobalt. To purify c 1 



Cold. On, 3S6 



Commerce. Premiums for ad- 

 ding I I I 



Concave mirrors known to the 

 antients, 74, 212; experi- 

 ments with, 182; supposed 

 plane mirror! are often con- 

 cave, 244; advantage may 

 be taken of this*, 245 



Copal. Furnace for melting, 

 155 ; varnish, to prepare, 1 5S 

 Copernicus. Some particulars 

 concerning, 302 



Cv \p:r, to separate, from tin, 26 

 Cotton, animal. On, 1 20 



Cox's analysis of copper and iron 

 pyrites, 87: of lead ores, 88 

 Crucibles. On making, 42 



Crystallography. Parallel of 

 De l'Jsle's and Haiiy's theo- 

 ries of, 1:9, 222 

 Cuthbertson on galvanic and 

 electric fluids, 83 

 Cuvier's ostcological description 

 of the rhinoceros, 350 



Dalton on composition of at- 

 mospheric air, 79; Henry's 

 illustration of his theory, 193 

 Dashfof, princess, 95 



Danbuisson on basaltcs, 59 



Davy's decomposition of nitrous 

 oxide, 81 



Death;, 18, 95 



De V Isle's theory of crystallogra- 

 phy. _ On, 1 $9^222 

 Deoxidizing principle emanat- 

 ing from the sun, 310 

 Desnwrets on ba^altes, 58 

 Dioptrical instruments of the an- 

 tients. On, 66,; 176, 232,344 

 Diseases. Cure of, by yeast, 50; 

 by gases, 55, 247 

 Dolomleu on basaltcs, 58 

 Dyeing. Premiums for, 105 ; 

 patent for, 393 



Earth, a new one, 9 c, 



Earthquakes. Pythagoras's me- 

 thod of piedicting, 294 

 Ecliptic. A prize question, 291 

 Eisleben. Longitude of, 14 

 Electric and Galvanic fluids. A 

 distinct property between, 83 

 Electricity. A prize question, 

 291 ; exper. 377 

 Emerald of Nero, 344 

 Ether, nitrous. New way of 

 preparing, 274 

 Excitants, On removal of, 4 

 fan* 



