CUCURBITAOCEZE. 63 
was acidulated with acetic acid and agitated with acetic ether. 
‘he acetic ether extract was yellow and most intensely bitter, it 
mounted to ‘3 per cent. caleulatedon the roots. The greater 
art of this extract was soluble in water, the solution being 
intensely bitter. The residue insoluble in water consisted of 
fatty matter, and after repeated washing with water, it still had 
a bitter taste. The aqueous solution of the acetic extract gaye 
with tannic acid a white curdy precipitate, 
Acetic ether appears to be a better solvent for colocynthin 
than light petroleum ether, and it can be separated from either 
_ an acid or alkaline solution by the reagent. The acetic ether 
extract soluble in water may be looked upon as crude 
colocynthin. Henke appears to have obtained abont °6 per cent. 
of colocynthin from the commercial drug freed from seeds, 
while Walz obtained about °25 per cent. 
- Average value, Re. 1 per 100 fruits. The fruit sup-_ 
plied from Saharunpore, N.-W. Provinces, in no way differs 
i om that collected in the Deccan. 
4 compound extract from 60 Ibs of dried fruit. 
CITRULLUS VULGARIS, Schrad, 
Fig.—Hook. Kew Journ. Bot., :444., 45 Water-mclom: fe 
Eng.), Melon d’eau (Fr.) : ‘cau 
Hab.—Cultivated throughout the Hast. ‘The seeds, ~— 
Vernacular.—Tarbu 
’ j (Hind.), Tarmuj (Beng.), Kalin 
_ (Mar.), Pitcha-pullum (Tam.), Kérigu (@uz.). 
