PROCEEDINGS 



AMERICAN ACADEMY 



ARTS AND SCIENCES. 



VOL. XIII. 

 PAPERS READ BEFORE THE ACADEMY. 



I. 



)NY. 



ht of 



•/ and 



. h-' L^ '^ ~ . \ ^°*^' 



TT ■ Ylyi * A r~\ and 



■^^'^^^^ the 



1 itive 



ampblet is to be removed from the Uab- ^^^^ 



permission of the Trustees. j ^^^^ 



• lie 

 isly 

 .00 111 glass nasKs, " which could not bear a suffi- 

 ciently strong heat to change all the yellow residue into white oxide." 

 By the later experiments, in which platinum vessels were used, he 

 found that 100 parts of antimony yield 124.8 parts of antimonious acid. 

 But although he distinctly states " that when pure antimony is oxidized 



— j^.. 



* Schweigger Jour, fiir Chera. und Phys., xxii. 70, 1818. 

 t Ibid., vi. 149, 1812. 



VOL. XIII. (n. S. V.) 1 



