30 INDEX. 



Buiinese imperial state carriage, its arrival in this country, no- 

 tice of, XX. 201 



Busby (Mr.), notice of the hydro parabolic mirror of, xv. 137 



BussY (M.), memoir of, on carbon considered as a discolouring 

 matter, xiii. 406-416 



' researches of, on the sulphuric acid of Nordhausen, xviii. 



145-148 



Butter, comparative examination of the acid of, xvi. 112. Facts 

 subservient to the history of cow-butter, 114 



Cabbages, method of guarding them from the ravages of cater* 



pillars, xiv. 238 

 Cadet db Vaux (M.), observations of, on the purification of vinous 



liquors from fruits, xviii. 399 

 Cadmium, a new metal, notice of, v. 370 



— chemical properties of, vi. Ill, 226 



— observations on, ix. 403-405 



discovery of, in metallic zinc, xiii. 226. Source of, 427 



-^ from zinc works, xvi. 383 



•* — — discovered in Ireland, xix. 348 



Cafeine, composition of, xvii. 173, 174 



Cagniard de la Tour (Baron), experiments of, on the action of 



heat and pressure on certain fluids, xv. 145-147 

 Calcareous spar, a new optical and mineralogical property in, 



discovered, i. 293 



■ »' ' formation of, xv. 384 



Calcium (sulphuret of), experiment on, xv. 149 



« chloride of, used as a manure, xix. 153 



Calcination of potash with an animal substance, vi. 358 



. . of metals, essays on, xiii. 136-141, 278-286 



Calculation of probabilities, on the application of, to natural 



philosophy, i. 120 

 Calculi (animal), analysis of, vii. 193 

 Calculi, on the production of, in the kidneys, viii. 66. Different 



