13£ ARTIFICIAL CAMPltOR. 



with oil ot turpentine, at the inflant of the difengagement of 

 the gas. This operation (hewed me a phenomenon which, I 

 ana of opinion, is deleaving or being known. 



" I put decrepitated muriate of foda into a tubulated retort; 

 1 adapted two of WoulPs bottles to the retort, into which I 

 had put a quantity of oil of turpentine, equal in weight to the 

 f.dt. On this I poured half the proportion of concentrated 

 lulphuric acid, and I difengaged the muriatic gas by a gradu- 

 ated lire. At fir II the oil acquired a yellow colour, afterward* 

 a pale brown colour, which, towards the end turned to a deep 

 brown. After cooling, the liquor was almoft wholly coagu- 

 lated into a cryftalline mafs, which, in every refpect, com- 

 ported itfelf like camphor. 



" I do not think," fays M. Kind, " that a fimilar production 

 of camphor has ever been noticed before; but Meyer fpeaks 

 of a concretion of a camphoric nature, formed inoil of tur- 

 pentine digefted with dry cauftic fait." He afterwards in- 

 stances a formation of camphor obferved by the late M, 

 TrommfdorfF, on diftilling eflential oils on lime, tf It is pro- 

 bable," fays M. Kind, " that the great tendency of muriatic 

 gas to combine with water, determined the union of the prin- 

 ciples of this liquid contained in the oil, fo that the carbon, be- 

 came predominant, and made the oil brown ; and, that the ef- 

 fect of this acid gas on it, correfponded with that obferved by 

 Achard, in the action of concentrated fulphuric acid on fat 

 oils. He did not remark that the heat was as confiderable du- 

 ring the action of the gas as Woulf ftated it to be." 

 Repeated by In an additional note, M. TrommfdorfF announces that he 



M. Trommf- had repeated M. Kind's experiment, and that he had obtained 

 analogous refults. 



Fie dried the concrete matter between fheets of paper; it 

 became very white, femi-tranfparent, and poffefled the fol r 

 lowing properties : 



" Its odour was firong, very analogous to that of camphor, 

 but injured by that of the turpentine. 



" Placed in a Filver fpoon, and heated over red hot coals, it 

 volatilized without leaving any refidue, and yielding a firong 

 fmell of ramphor. 



*i Its vapour inflamed. 



" Expofed to a gentle heat, in a fmall phial, it was entirely 

 f •iblimed. It difFolved with facility in oil of almonds. 



It 



dorff. 



