ON DRYING MURIATIC GAS. ]g5 



It is rare in a research of such delicacy to find the re- suit of the ex- 



suits of experiment aeree so perfectly with those of calcu- P erunelt > yer * 



r ** 7 r " nearly agree. 



lation. 



In the conclusion of this paper I shall have the honour Farther 

 of giving the class an account of the results of a consider- ex P e «nients 

 able number of experiments, which I have just made to as- 

 certain the quantities of heat developed in the combustion 



of sulphuric ether, naphtha, suet, and several kinds of withotiier 

 , ,-, . ' .<• i • i i • n i substances 



wood ; as well as that manifested in the condensation ot the 



vapours of water, of alcohol, and of ether. 



These experiments are all finished, and I have made promised. 



considerable progress in the paper, in which I purpose to 



give an account of them here. 1 flatter myself, that the 



class will do me the honour to listen to it with its usual 



indulgence, at an early meeting*. 



V. 



Remarks on the Experiment of Dr. Bostock and Dr. 

 Traill. In a Letter from a Correspondent. 



To W. NICHOLSON, Esq. 

 SIR, 



JL HE experiments of Drs. Bostock and Traill cannot, I Experiment of 



think, be considered as decisive in proving, that water is Jqy a 



produced in the combination of dry muriatic and ammo- notdecisiTe, 



niacal gas. The mode adopted in drying the ammoniacal 



gas by these gentlemen is not effective. A lump of quick- a lump of lime 



lime introduced into a iar of this gas would not absorb being tn , suffict " 



ent to dry 

 the whole of the combined moisture. Lime i9 not sc- greedy muriatic g^* 



of moisture as some other substances, and in a mass would 



be disposed to take up but little: had it been introduced Hot lime in 



immediately from the fire in the state of powder, it might P oW<ler tetter: 



have been more effectual. To deprive gas of the moisture 



it contains, the best method has been found to be to pass 



• Tliis the Count has promised to transmit for insertion in the 

 Journal, as soon as he can find an opportunity, 



it 



