connected with the is AS 
_ the position of the hydroxyl, for the a dro D2 
-embles zingerone in fastens 
Te 
ai principal cohsttient of the ae soluble in ieee a Serpette b 
Wey cene” B.’p: 105 to 110° (15 mm.); 40.925. ‘It ‘has a He narcoti 
the blood pressure and rate of respiration, 
Grape fruit Oil. The tendency to use the. ba prodiae of eer A 
+ industry) induced H. P. Zoller’) to investigate the chemical constituer 
ae fruit. He reports on his work in an article called: “Some. of the con be 
American grape fruit (Citrus decumana)", 
uate Society, &c.,. without appealing to the public. The English of cone 
bestia call it Haan a name deri! derived from the Latin ‘ ponany melo” lan 
certain British sea-captain, who is said to have introduced the fruit into ae 
fe from Java early in the eigteenth century. It is interesting to note that in 
iA is the Amie 2 home of the ‘grape fruit, fete ere two varieties. One 
much higher altitudes ‘tid is known there as the roaeaitie varen The b ; 
in both varieties is identical, which would lead to their classification as -Varie 
under Citrus decumana. It is likely that the term shadtonk applies more hey. to 
the larger and non-edible variety. ee ne foc 
Just at what particular date the grape fruit was introduced into ‘th a JSie 
America is not known. intr 
By: 
ek 
a 
oR 1) Tokyo Igakukai $1 (1917), 1 ; ee Sears: 12 (1918), 2033. = 
Yee! 4 2) Comp: RET. Will, Journ. Industr. Engin. Chemistry 8 (1916), 78; 
ia October 1916, 19, 24. — 3) Journ. Industr. ane its hal 10 (19%8 ix 
