INDEX. 407 



and of its action on the different phenomena of life, 115-123. 



Experiments of, on the employment of electricity in calculous 



cases, 185-187 

 Prize Questions, by the Royal Academy of Sciences, at Paris, 177 

 Prussia?i Blue, discovered in urine, 177 

 Prussiates, (triple), experiments on the acid of, 102, 103 

 Purpuric acid, note on, 104 

 Pyrophorus, obtained from the tartrate of lead, 385 



Quinia, analysis of, 283-285 



Rennie (Mr.,) remarks on the design of, for London bridge, 28-35 



Rhubarb, vegetable alkali discovered in, 172 



Rider (Mr. J,,) description of the rotatory steam-engine, invented 

 by, 267, 268. Remarks thereon, 269, 270 



Rose (G.) observations of, on felspar, albite, labradore, and anor- 

 thite, 106, 107 



Rose (Mr. H.,) on titanium and its combinations with oxygen, and 

 sulphur, 97, 98. Further experiments on titanium, 381. Ti- 

 tanates, 382. Sulphuret of titanium, 382, 383. On the in- 

 fluence of tartaric acid in certain cases of analysis, 107-109. On 

 the solubility of substances induced by the tartaric acid, 379 



Royal Society of London, Proceedings of, 297-299. Officers of, 

 299, 300. Analysis of their philosophical transactions for the 

 year 1823, Parti., 326-332 



Rust of iron, on the presence of ammonia in, 380,381 



Salamander (Aquatic,) the general process of ike re-production of 

 the members of, described, 84-89. Variations in that process, 

 89-92. Comparison of the process of re-production in diffe- 

 rent animals possessing this power, 92-94. General observa- 

 tions, 94-96 



Salt, new quadruple, notice of, 384, 385 



Sap, circulation of, in vegetables, experiments on, 388-390 



Savart (M. F.,) experimental researches of, on the vibration of air 



Scarlet- Fever, chlorine a remedy for, 395 



Schumacher (Professor,) catalogue of the orbits of all the comets 

 hitherto computed, 149-154, 349-356 



Schweiygers electro-magnetic multiple or, observations on, 123- 

 126. Notice of insects discovered by him in amber, 393 



Sconce (Foreign,) Progress of, 97-133 



Scientific Books, analysis of, 134-138; 301-347 



Shadows, on the phenomena of, 37 1 



Shells, genera of, described, 49-79, 241-258. Observations thereon 

 258, 259. Description of the plates illustrating them, 260-264. 



Shrapnell-Shells, change of musket-balls in, 163 



