INDEX. ix. 
Emulsin, researches on . . . . .351 
Estimation of sugar of milk, . . . . 370 
Ethereal extract of capsicum, . . . .115 
" cardamom, . . . . 116 
" chenopodium, . . . . 116 
" " pellatory, . . . . .116 
Ethiop's mineral, . . . . . .271 
Experiments on senna and argol leaves, . . . 184 
Explosions in chemical laboratories. . . . 250 
Fixed salts, their volatility in aqueous vapour, . . 256 
Fruits, on the ripening of . . . • 151 
Gaduin, ....... 140 
Galls, Mecca or Bussorah . . . . . 265 
Gas burners, ....... 127 
Gas furnaces, ...... 103, 127 
Gelatinous principles of vegetables. .... 151 
Gelatin coating for pills, ..... 226 
Gilbertson's displacement apparatus, . . .129 
Glass displacers, . . . . . .131 
Glass vessels coated with copper, .... 264 
Gout paper, ....... 172 
Gun cotton, substance analogous to . . * 244 
Gum arabic, purification of . . . . 321 
Gutta percha membrane, ..... 286 
History and analysis of Saucy bark, . . . .97 
Honey, on the composition of . , . . 334 
Hyd rated valerianate of zinc, . . . .312 
Hydrogen, its passage through solid bodies, . . 173 
Ilex Paraguayensis, acid of . • . .70 
Ilicine, . . . . . 89 
India cinnamon, notice on .... 296 
u opium, notice on . . . . . 193 
Influence of time on the formation of chemical bodies, . 51 
Iodide of lead, preparation of .... 228 
u Potassium, ...... 4 
" " test for ..... 75 
Kino of the Tenasserim provinces, . 134 
Laboratories, Explosions in chemical . . . 250 
