NEW PROCESS FOR CLAYING SUGARS. 187 



and confequently they both contain the fame quantity of com- 

 buftible matter ; for in proportion as the combuftible matter 

 is increafed by the formation of hidrogen, in the fame pro- 

 portion it is diminifhed by the formation of carbonic acid gas. 

 But this is obferved to be contrary to fact; for carbonated hi- 

 drogen gas when expanded does actually contain more com- 

 buftible matter than before its expanfion. It would appear 

 then, that a fatisfa6tory explanation of this increafe of com- 

 buftible matter has not yet been given. 



G. H. 



VII. 



A netv Procefs for claying Sugars, propofcd by Cit. Ha pel- 

 La c hen a ie, Chief Apothecary of the .Military Hofpitals of 

 Guadaloupe, to the Agents of the Confuls of the French Repub* 

 lie in the Windivard //lands *. 



JjEING called upon by the fcientific million confided to me Introdudtion* 

 by the Government, to employ myfelf in every kind of re- 

 fearch which may prove interefting to the cultivation and pro- 

 ductions of this colony, I have thought it my duty to endea- 

 vour to difcover a fimple, eafy, and cheap method of dif- 

 penfing with the pottery which is ufed in the fabrication of 

 clayed fugars. 



There was even an urgent neceffity that I fhould direct my Want of Pans 

 attention to thefe objects, becaufe moft of the proprietors of for c ! a y»"g fu - 

 thefe colonies, being at this moment in want of the forms and m ingo, 

 pots hitherto confidered as indifpenfibly neceflary for the clay- 

 ing fugars, are obliged to wait till the fmall number of pots 

 they poflefs (hall be cleared of the fugar they contain before 

 they can fabricate more. 



The delays occafioned by this inconvenience are the more obvioufly pro- 

 prejudicial to the inhabitants in general, becaufe they are Jj n of great 

 obliged, on this account, to defer cutting their canes when at 

 the moft advantageous time of their growth ; and as they can- 

 not perform this at the moft favourable feafon, their lofles are 

 incalculable by fuffering the canes to grow old, and flnifiiing 



* From the Annales de Chimie, XL. 73. 



their 



