071 the Alcohol of Sulphur ^ or Sulphuret of Carbofi. 173 



Whilst we were finishing this paper, and arranging our 

 materials, in order to present them to the Royal Society, the 

 Annales de Chimie, for the month of September last, reached 

 this country, by which it appears that the alcohol of sulphur 

 has recently been again subiriitted to examination in France, 

 by Mr. Cluzel, who supposed it to be a compound of sulphur, 

 carbon, hydrogen, and azote.* But Messrs. Berthollet, 

 Thenard, and Vauquelin, the reporters of these experi- 

 ments, have repeated them, and by a process of their oWn, 

 quite different from the methods which we have employed, 

 these celebrated chemists have revived the opinion of CleiMjent 

 and Desormes, that the alcohol of sulphur is a compound of 

 sulphur and carbon, in the proportion of about eighty-five 

 parts of the former to fifteen parts of the latter, no hydrogen 

 entering into its composition. How near this conclusion agrees 

 with our own, will be seen in the following pages. 



Although some of the experiments on this substance which 

 we are going to relate, have already been performed by others, 

 yet as we have^in several instances, obtained different results, 

 and as any considerable omission would interrupt the thread 

 of our narrative, we shall beg leave to lay before the Society 

 a complete, though concise, account of our analysis. 



We shall, for the sake of arrangement, class the particulars 

 of our enquiry under four heads : viz. 1 . Preparation and general 



since his return to Stockholm. There are also some important collateral objects, 

 which are almost entirely his own, and which, together with his remarks on determi- 

 nate proportions, have been added to the paper in the form of an appendix. (Note 

 of Dr. Marcet.) 



* It appears that Mr. Cluzel considered the sulphur in this oil, as being in a de- 

 oxydated state, an idea which ^ad some years kgo occurred to one of us, and also to 

 Sir 'H. Dav.t. See Phil. Trans, for 1809, p. 465. 



A a a 



