78 
, issolves the 
d bound to a skeleton of metarabin. KOH disso t 
iene sat deep-brown colouration, owing to the tannin which 
As mentioned above, the tan-resin gum of Angophora “yom 
ig soluble in boiling water to the amount of 65 per ce 
tannins ‘or from ellagic acid. Similar tan resins have as 
by Heckel and Scktartauhvatten. (See Pharm. Journal, 92-9 ae 
The residue left undissolved by alcohol consists of 81 . “ 
ic acid, 9:4 per cent. of metarabin, and 5'3 per 
ANALYsts (22nd Feb., 1895)— 193 
; Wa ieee sae ae 124 
Ellagitannic acid... ek ae as "333 
Tannin yielding Angophora red... -.. ee 
* Ellagic acid .:. ity as ase - G4 
: Metarabin a % 50 
4 Be ee : 
Tannin embodied in the resin... ag “50 
i Impurities ... Re eS 
: Volatile oil | oa 
os 99°7 
4 i ay e in September, 
: 1894. t* analysis differs a little from another one mad 
se -resin 
gum f hh an exudation of the same tree, which yielded the tan 
a 0 t is year. vel; utina, 
FR Similar exudations are produced by ap ame dee Selnaae 
De. M., Fl. Austr. iii. 184 (Apple-tree) ; so Wiadeiata, Bail., 
, eee} A Rie ey ak alae qatoliring phlobaphene 
8 ype) -ot* 172 (Apple-tree) ; but an 
"ytesent in them PP 
