A 



JOURNAL 



OF 



NATURAL PHILOSOPHY, CHEMISTPcY, 



AND 



THE ARTS. 



SUPPLEMENT TO VOL. XXIV. 



ARTICLE I. 



Memoir on the Triple Sulphuret of Lead, Copper, and 

 Antimony, or Endellion. By M. le Comte de Bournon, 

 F. R. and L. S. 



(Concluded from Page 260.J 



PART II. 



Observations on Endellion, as being the Result of a triple 

 Combination, and on the different Sulphurets of Copper. 



J. HE Royal Society has printed in the first part of the Paper on en- 

 Philosophical Transactions for 1808 a paper*, in which phU°Trans. e 

 the constituent principles of endellion, as well as the 

 manner in which they combine, are discussed f . The 



author 



* See Journal, vol. xx, p. 332. 



f Additional note. I mean Mr. Smithson's paper already men- 

 tioned. The Royal Society having printed a critique on the crys- 

 tallographicalpartof my first memoir on endellion, however I might 

 feel hurt by the style of that critique, I thought it better not to notice 

 it, than to expose the transactions of that illustrious and respectable 

 body to be made the scene of a dispute, which certainly could not be 

 more misplaced. I therefore presented my new memoir on endellion 

 to the Royal Society, merely as the result of continued and extended 



Vol. XXIV.— Supplement. Y observations* 



