422 INDEX. 



Bridges, chain. See Tenacity of Iron. 



Bur?nese imperial state-carriage, its arrival in this country, notice 

 of, 201 



Calculus, (human) analysis of, 49, 50; from a hog, 411 



Carbon and hydrogen, on new compounds of, and on certain other 



products obtained during the decomposition of oil by heat, 848- 



355 

 Carbonic acid gas, natural sources of, 175 



■ — acid, action of, on hydro-sulphurets, 393 



Caustic, employment of, to destroy the variolous eruption, 200 

 Cements, calcareous experiments and observations on, 50-57 

 Chain bridges, application of the tenacity of iron to, 162, 163 

 Chemistry, plan of an extended and practical course of lectures 



on, 203 

 Chevreul, (M.) experiments of, on organic bodies, 388-391 

 Chlorine, remedy for the effects produced by its inhalation, 199, 



200 

 Claws of crabs, how thrown off, 1-11 

 Combustion, influence of solar light upon, 387, 388 

 Comets, continuation of the catalogue of, 308-311 

 Copper, observations on the changes which have taken place in 



some ancient alloys of, 296, 297 

 Crabs, means by which they throw off their claws, 1-11 

 Croton tiglium, observations on the expressed oil of the seed of, 



231-234 

 Cuthbert, (Mr.) on a reflecting, compound, and single microscope, 



377, 378 



Daniell, (J. F., Esq.) correction by, of an error in the " Meteoro- 

 logical Essays," 74-78 ; on the barometer, ibid. 93 



Davy, (Sir H.) address of, to the Royal Society, report of, 304- 

 306 ; further researches by, on the preservation of metals by 

 electro- chemical means, 343-348 



Decomposition, slow, of glass, observations on, 259-264 



Digestive canals in the foetus of vertebral animals, observations 

 on the contents of, 197-199 



Distillation of fatty bodies, experiments on, 391-393 



Dry voltaic piles, notice of, 169, 170 



Dupuy, (M.) on the distillation of fatty bodies, 391-393 



Earth, figure of, experiments for determining, 141-159 

 Earthquake, description of, 183 



Effect produced by the inhalation of chlorine, remedy for, 199, 200 

 Electric current, simple method of exhibiting the deflection of a 



magnetic needle by; 400: supposed in the nerves, investigation 



of, 404 

 Electric flash producing lightning, 172 



