and some of the products of its decomposition. ^ ill^rl? r r* » 



was in too small a quantity lo be more closely investigiated^^ 

 it is evident that the solution ofithis questioa must be reseiJ 

 Jbr future investigations.,,,,, yloxii^d /hngbi'/a tv.n yU>frn:(i(in 

 Should these prove in an -unequivocal way the difFeijence of 

 the two bodies, it would be of great interest to ascertain from 

 what material styrole has its origin. For this purpose it would 

 be in the first place particularly important to gain some in- 

 formation about the source from which Slyrax liquidus is ob- 

 tained. The onlyauthentic information we possess on this point 

 Js given by Martins*, namely, that it is introduced through 

 Suez and Trieste, is named by the East Indians Cotter Mija, 

 and is produced from a tree called Rosa Mallas. From this 

 tree two products are, according to Martins, obtained, the 

 one, the common Styrax liquidus, through a sort of distillation ; 

 the other a balsam, which is very rarely to be met with in 



interestiiixU adT Jnioq-^nihod Jnatsno;) a puivwd binpil /m 

 bbunol ''0-M n ballije^ib (• Postscript. ^^^^^ aVodB Jaiif 1b bay* 

 aarm'ffjoqqr. n'' ih'nhj ,??; _ ' oi'\i{i' c o/nmoid ibpa 



The preceding memoir was finished in its principal points 

 when the investigation of the products of distillation of dra- 

 gon's blood by Gienard and Boudaultf appeared. ,y ,A>au>v>u 

 A short notice of this subject had been earlier laid beforei 

 the French Academy J. What was then stated, however, did 

 not lead us to suspect in the slightest degree that the products 

 obtained by distillatitm from dragon's blood could stand in 

 any relation to our investigation of fluid storax. Their late 

 memoir, which contains many essential corrections of the 

 former communication, showed us at first sight the connec- 

 tion between it and our investigation. Messrs. Gienard and 

 Boudault having communicated some striking results, not 

 easily to be understood, it appears to us not to be without 

 interest to conclude this memoir with a few remarks on the 

 investigation of the French chemists, as our experiments fur- 

 ; nish a key to their difficulties. 



Gienard and Boudault, by distilling dragon's blood, ob- 

 tained, in addition to water and some acetone and benzoic 

 acid, a reddish-brown oily fluid, which is a mixture of differ- 

 ent bodies. From this they isolated two carbo-hydrogens, 

 which they named dracyle and draconyle. 



For their preparation the raw oil was submitted anew to 

 distillation, and the product, distilled at 180° C, was collected 

 by itself; it contains dracyle and draconyle. To separate them, 



• Briejliche MitthcUwig. "-''i"^ JJulK.iq oiiJ Ji.ni hniihumyj 

 ■ t Journ. de Pharm. et de Ch4mtttie'^i\^vvhi^i-Q5fiii''^ [)ffh f"' >• 

 ' ;- ■; Ibid. vol. i. p. 274, and Ann. der Chem. u. Pharm. vol. xlvU}, p. J|43. 



