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5 
126 Mp. CAVENDISH’s Experiments, on ae. | 
other: fabftance,: and confequently: no, fenhb! e quantity of the 
‘common air with a the nitrous air was! mixed: was tained 
into.-vitriolic-acid: - feo edad ferirrert: acid Joo ae 
‘It-appears, from his ae. that nitrous air ‘contdins as 
6 et ds, as 23 times its, weight of faltpetre ;. for fifty-two, 
euncé: meafures of nitrous air weigh 32 grains, and, as,\wag 
before faid, yield-as; much acid-as is containedin 842 grains, of 
‘faltpetre; 40 thatthe acid in nitrous air isin a remarkably 
. Coficentrated -{tate, and I believe more than-PF; times as muh iho: 
_as the ftrongeft {pirit of nitre ever prepared: 2.4} [ 
-Having new. mentioned the unfuccefsful attempts | Boies ito 
‘find out what becomes ofthe air lott by phlogiitication, ‘TI pro= 
ceed to fome experiments, which ferve really to: explainsthe 
mattefe) oi: 00 ; og hiss e 
‘alu, Dr. PriesTieEy’s lat salons fe expen tates 18 dae 
an experiment ef Mr, WaARLTIRE’s, in whichat.ts faid)that, on 
firstig a mixture-of common and inflammable,air by eleCtiicity. 
10, & Clefe: copper veflel holding about three pints, a lofs of weight’ 
was/aliv ays{perceived, on an-average about two) grains,, though} 
‘the jveflel- was flopped in fuch a;manner that no; aincould efcape; 
by, the explofion.;.-It is alfo related, that on wepeating the -ex- 
periment in. glafs.veflels, the 'infide of the glafs,, though clean: 
and) dry before, immediately - becamie’. dewy’s which, confimed - 
an opinion he had ‘long entertained,that conimon, air depolits; 
its moifture -by phlogiftication.’ As the latter,,experiment ‘feem- 
edhlikely, to throw great light »on the fubject/L had. an jview;, Ag 
thought itiwell worth examiting more clofelys{\)\Tche frit ex-, 
periment alfo, if there, was}no miftake in it, -would;be very; exr; 
traordinary and curious; jbyt. it, did). not fucceed., with mels/, for; 
‘though the -veflel 1. ufed held, more than Mr. | WARLTIRE? S59 
namely, 24,000) grdins)jof -w ater, aind though the experiment! 
7 was 
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