et Soe eee ee 
ee ee 
43 
od .. eormed = eg jot yellow and brown. HCl makes 
1 , and produces an orange colouration. 
em neta in Na,CO, has a sweetish bitter este 
tes dino race issolves only a small part of the resin, and the same 
ed again or taken out of fresh resin by glacial acetic acid. 
Soli oi 
id fats, lucca oil, paraffin, wax, and glycerin mix very nicely 
colourat ia : 
it “het : - is — nearly insoluble in alcohol. After some time 
fe wnish-yellow, and is then easily dissolved in spirit with 
ace i : 
3 tate oy Figs solution brown-black. KOH gives a golden- 
The crystals consist of the yellow colouring matter 
allie acid or 
d from a tannin 
of the solution 
