e 
THE 
MONTHLY MAGAZINE. 

No. XI.] 
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DECEMBER | i766 

EVGL. IT: 


The Condufors of the Magazine inform their readers, that the SUPPLEM ENTARY 
NumeBEr, containing Indexes, Title, 
é&c. to Volume II, and feveral valuable 
Orginal Communications, will be ready for delivery, on or atout the 12th of ° GAUATY.« 
lad 
They alfo, 
on this commencement of a new year; refpectylly return their acknowledve- 
ments for paft favours of every kind, from friends; fupporiers, 
and correfpondentss 
7 
which they hope to continue to enjoy, as it foal! be ihely Jedulous endeavour to continue 
ZO mrt. 

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ORIGINAL “COMMUNICATIONS. 
To the Editor of the Monthly Magaxine. 
SIR, 
THE following general account of the 
Stale of Chemuifiry in Germany, parti- 
cularly with regard to the Progrets of the 
new fyftem, which has rendered the 
name of Lavoifier {o illuftrious, will not, 
I prefume, be an unacceptable article in 
your Mitcellany. 
An entire revolution in the fyfiem of 
chemiftry has been recently effected in 
Germany. The exiftence of the doc- 
trine of phlogifton, with certaindy ualifi- 
cations, had itill, however, a few parti- 
zans remaining ; GREN, a fcholar of con- 
fiderable repute. alrhough too tenacious 
of his opinion, Wesrrums, GMELIN, 
and CReEtr. 
TROMMsppRF, who isa convert to 
the new doétrine, ftill adheres to fome 
remains of the ancient fytem. Gorr- 
LING has promulged a new hypothefis, 
which he is eager to appear the cham- 
pion of. With regard to the junior che- 
mifts of that nation, SCHERER DE JENA! 
is the moft promifing; he is a man of 
extenfive talent, an excellent experi- 
menter, and zealoufly attached to the 
French chemiftry. Were it not for-the 
res angufia dem, we might expect, from 
his refearches, the mof important new 
difcoveries in the {cience. 
Profeflor Maver, at Erlang, thines 
equally as a mathematician, a natural 
Philofopher, and a chemif. Hrame- 
STADT is a ftrenuous adyocate for the 
new doétrine. 
The German chemifts, WHIEGLIEB, 
‘*Montaty Mag. No, XI. 
Ricurer, LEONARDI; and the ref 
above-mentioned, &c. in attempting to 
combine thé new theory with the exift- 
ence of phlogifton in combnuitible bo- 
dies, admit the general principle, toge- 
ther with. its confequences. All they 
aim aft, is, to re{cue themfelves from the 
pretended difgrace of a complete defeat. 
Thofe who ill maintain the exiftence 
of this agent, confider it as the bafis of 
light, or as Hight extinguifhed. This ba- 
fis, ftored ud in abundance, in inflam- 
mable fubftances; when jt meets and 
combines with heat, conftitutes luminoug 
fire’; thus accounting for the faét, of 
combuftible bodies requiring a certain 
degree cf heat, in order to catch fire. 
che German chemifts lay down: with 
tne exception, however, of thefe, they 
have all adopted the new doGrine, Vax. 
Mons has been chiefly inffrumental in 
effecting their converfion 5 having plain- 
ly demonftrated the prefence of the oxy= 
gen, in the oxyde of Mercury, made red- 
hot by fre. 
When it. is reprefented that Gren, 
WesrTRuUMB, GMELIN, and CRELL, 
maintain, partially, the exiftence of 
phlogifton, it is not meant to affert, that. 
they ffill profefs the principles of Siahi’s 
theory. A late publication of GREN; 
who is a profound naturalist, mathema- 
tician, and geometrician, as well as ches 
mift, isentitled, “* TAée Foundations of the 
New Coemifiry,’ and agrees precifely 
with thi¢ principles of the French docs 
trae. In his Manual of Chemifiry, re- 
brinted two years ago, he reprefented 
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