BY J. H. MAIDKN, F.L.S., F.C.S., ETC. 5 



The residue (2G"0 per cent.) is of a chocolate colour, 

 consists of woody fibre and other vegetable debris, such as cone- 

 scales, &c., and does not contain any guinmy matter. 



SUJIMARY. 



Soluble in petroleum spirit (? resin acid) . . 9-3 



Resin soluble in alcohol (rect. spirit) . . 61"3 



Soluble in water . . . . . . . . 3-8 



Accidental impurity . . . . . . . . 26'0 



100-4 

 A second sample was treated with alcohol direct, which 

 extracted 72*9 per cent, of a bright coloured resin in no way 

 differing (apparently) from that already described as having 

 been extracted by alcohol. 



The residue was then acted upon by petroleum spirit, 

 which extracted 5 '3 per cent, of the resinoid substance above 

 referred to. It contained 22-6 per cent, of accidental impurity. 



Summary. 



Soluble in alcohol direct . . . . . . 72"9 



,, ,, petroleum spirit . . . . 5-3 



Accidental impurity, &c. . . . . . . 22-G 



100-s 

 (The effect of water was not ascertained). 



Cold water has apparently no effect on the resin. On 

 boiling with water for some time it partly melts and clings to 

 the sides of the beaker, the remainder breaks down and settles 

 at the bottom. The liquor becomes turbid, of a yellowish- 

 brown colour, and possesses a very slight odour. 



For the chemistry of the resin of Annicaria hrasiUe)isii< (A. 

 Rich.), and products therefrom, see Peckholt, A". Br. Arch., 

 .cxxii., 225 ; Gmelin, xvhi., 19 ; Watts' Diet., VI., 190. 



