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Prefent State of Chemiftry in Germany. 33% 
«< Gren, as profound a philofopher as a chemift, 2 great 
mathematician and geometrician, ‘no Jonger attaches any 
importance to the admiffion of a particular inflammable 
‘matter. His Foundations of the New Chemiftry, the firil 
yolume of which’ he has ju publithed, are entirely written 
according to the principles of ‘the French fyftem. In his 
Manual of Chemifiry, printed two years ago, he gave the 
theory of oxygen along with that of phlogifton. He did al- 
moft the fame thing, the preceding ‘year, in the fecond 
edition of The Grounds of Natural Philofophy.. A’ third 
edition of that work is now printing, in which he will give 
an account of the phenomena of that f{cience according to 
the pure fyftem of Lavoifier. His Journal of Natural Phi- 
lofophy, of which eleven volumyes have appeared, has always 
admitted indiferiminately articles for and againft both 'theo- 
‘ries: That’Gren fhould fo ‘long doubt, can aftonith thofe 
only who are ignorant, that to think for onefelf gives birth to 
{cepticifm:and diverfity of opinions. 
“© «Gmelin is exclufively employed, as we may fay, with, 
hiftorical and technical chemittry. In the fecond edition of 
jis Manual of Chemiftry,'as' applied to the Arts, which he 
has jult finifhed, he gives the little theory required in fuch 2 
work according to the old principles; ‘but in addreffing 
" himfelf to beginners, ought he’not to {peak in language that 
ds known and fuited to their comprehenfion? His Intreduc- 
‘tion to General Chemiftry gives an account of the ftate and 
-procrefs of the {cience ‘in both theories. 
- & Weftrumb gives alfomanyarticlesof technical chemifttry, 
which he treats of with a knowledge and difcernment which 
denote a chemift well-verfed in the praétical part of his art. 
His writings on pharmacy evidently fhew that they are the 
‘workof aman who has feen much and reflected well ‘on’an 
“art where a great deal ftill remains to be done. ‘In both 
‘thefe kinds of labour he prefers faéts to reafoning. 
- Orel is Mill the editor of the Chemical Annals; avalu- 
able colle&tion, which has tended nmuch to promote the culti- . 
. vation 
