Hqyal Society of Lcnchn, 377 



bis lev^ilres. T found him much employed at his own houfe 

 on that part of chemillry which he has engaged to write for 

 the new Encyclopedic, and which, as I law by his manu- 

 fcript,' is nciirly finiflied, and will no doubt meet with the 

 approbation of the public. He informed me, that as foon 

 as thi- work was completed he intended to begin another, viz. 

 A Hillory of the Revolution efte£ted in France in regard to 

 Chemiftry, and the Foundation of the Theory refpc6ling the 

 different Kinds of Cafes. Foiircroy was one of thofe who 

 chiefly contributed to the eltablifliment of thofe learned in- 

 ftitutions and fchools which at prefent exift at Paris, and he 

 fiill labours for their improvement. His principal works are: 

 An Eli'ay on the Difeafes of Artifts, by Ivamazzini, 1777, 

 i2mo. The Principles of Chemiftry, 3 vols. 8vo. of which 

 there have been feveral editions : the Jaft confifts of eight 

 volumes. The Principles of Chemiftry, for the Ufe of the 

 Veterinary School, 2 parts, i6mo. A Treatife on the aci- 

 dulous Springs of Engheim. A Colleftion of Memoirs in 

 Chemillry, Svo. The Art of knowing and employing Me- 

 dicines, 2 vols. i2mc. On the Improvement of Medicine 

 by the Phyftcal Sciences, 1792 and 1793, 4 vols. 8vo. 

 The Philofophy of Chemiftry. And many fingle papers in 

 the Memoirs of the Academy of Sciences and the Annals of 

 the Society of Medicine; fome public orations on the fci- 

 ences, and a few differtations on faltpetre. 



" Fourcroy is a man about 40 years of age*, of an agreeable 

 afpcct, and great aftivity. At prefent he is fo much engaged 

 with public bufmefs, that he has little time left for domeftic 

 cnjox ment ; he has therefore fent his wife to a country re- 

 treat, and placed his eldeft fon under the care of his friend 

 Vauquelin, at whofe houfe he enjoys the inftru<5lion of Stany. 



*' Fourcroy in the courfe of his converiation feemed to have 

 a great attachment to England, on account of the great pro- 

 erefs which the Iciences have made in that country, and he 

 often expreUed a deiire of paying a vifit to it on the reftoralion 

 of peace." 



o 



I>Xn. Vrocecdings of Learned Societies, 



llOVAL SOCIETY OF LONDON, 



N the 34th of December was read a paper on fric- 

 tion, by i\Ir. Southern. He made a number of experi.. 

 ments on the niotions of large grindftoncs revolving with 

 ^reat rapidity, and al'certained the power of friftion on their 

 iixts from tlie number of revolutions which they performed 



* Thi» wiis written in 1797. 



vUen 



