j^i^ ' SClENTJtPJC NEWS., 



perimert, M. Pecard has obtained a much more equal devitrifi- 

 cation than that procured by Reaumur; who remarks in his 

 memoir, that he thinks it not impoffible that this point of 

 equality between the internal and external parts may be ob- 

 tained. 



This fubftance is much harder than glafs; it readily gives 1 



fpark with flee! ; and from the advantages it feems to hold 



forth in many refpefts deferves to be made an obje<5l of in* 



veftigalion. 



I^arcct applies A dlftinguilhed chemifl, who purfues the fteps of his father, 



the glafs porcc- ^vhofe name will be ever dear to the fciences, and to thofe 



Lun to ufetul ' 



purpofes, who cullivate them, M. Dcircct, has already made feveral ex- 



periments on this inlerefting fubjeft, which form part of a 

 work not yet completed. He has made mullers of this fub* ' 

 fiance, exceeding the hardnefsof flint; alfo capfules and other 

 articles which eafily fupport the fire, and are not fubjecl to- 

 the power of re-agents, fucb as fulphuric acid, &c. The. 

 little coft of the materials whereof thefe vefTels, &c. are 

 fabricated, induce a hope that the labours of Reaumur on this 

 fubjefl will be refumed, and carried on in a way that will be 

 of utility in different arts. 



Anatomical Work. ' 



AN extenfive work on the anatomy of the organs of h&^\t\» 

 m animals, generally, together with the phyfiology of their 

 feveral parts, and a feries of accouflic phenomena intended to 

 elucidate the fubje61, is in forwardnefs for publication this 

 jpring by Anthony Carlifle, F. R. S. F. L. S. and furgeon to 

 tjje Wefirainfter Hofpital. 



