N. O. LOGANIAOKjE. 
841 
The (at is obtained from the seeds of nux-vomica by extraction with ether, 
and is a by-product in the manufacture of the alkaloids, strychnine and 
brucine. The yield of the fat is about 4 per cent. (Harvey and Wilkie), 4’2 
percent. (Schroeder). The fat melts at about 29°, it has a low saponification 
value below 196’ and 170, iodine value, 69 to 79. A considerable amount of 
unsaponiflable matter is present, from 12 to 16 per cent. According to Schroe- 
der (1906) the fat contains 8’6 per cent of solid glycerides (palmitin and 
araehin) and 74'5 per cent. Of olein. (Hooper). 
Nux vomica contains 1 — 2% of a concrete oil or fat which consists princi- 
pally of the glycerides of capric, eaprylic, caproic, butyric and palmitic acids. 
The unsaponiflable matter consists of a satd. ale. C 35 H 59 OH, and an unsatd. 
ale. C 31 H 54 0.f)H 3 0 behaving like syroceryl ale. The oil is dark brown in color 
and possesses an unpleasant odor. An analysis gave : djs° 5 . 0.892, sol. point 
60°, sapon. no. 162, I no. (Hubl) 04. Reicbert-Wollny no. 1.0, acetyl no. 31'2, acid 
no. 88.7. — (Chemical Abstracts May 20, 1916 p. 1404. 
The unsaponiflable portion of the oil may be separated into the fractious, 
(a) a resinous portion, (b) a phytosterol, m p. 158°, (c) an ale., C 35 H s7 OH 
(C„ Hj„— 120) or 0 S6 H 51I OH (C„ H 2 „ -10 O), m.p. 90°, (o]o +90°, mol. wt. 496. 
The alo. contains no double bond and is probably related to amyrin. Esters of 
Ac O H, propionic, benzoic and salicylic acids were prepared. Of the Ac OH 
ester the molecular wt. =612, [a]o = +74M7. The ale., C 31 H 53 OH, possesses 
double bond in the side chain, its properties coincide in many respects with 
those of the sycoceryl ale. of De la Rue and Mueller. No sepu. of the un- 
saponiflable portions of the oil could be effected accoding to the method of 
Darmstaedter and Lifschuetz. (Oh. A., March 20, 19 16, p. 800.) 
790 . S. potatorum, Linn. f. h.f.b.i., iv. 90 ; 
Roxb. 194 . 
Habitat: — Deccan Peninsula, extending north-west to the 
Sone river. 
Sans. : — Kataka, Ambu-prasada. 
Vern : — Nirmali (Hind, and Beng.) ; Chil-binj (Dec.) ; 
Tetran-kottai (Tam.) ; Chillaginjalu (Tel.) ; Titran-parala (Mai.) ; 
Chiligidda ; Chell-blgd (Kan.) ; Nirmali', nivali (Mar.); Kamon- 
yeki (Burm.). Gapra (Bomb.). 
English : — Clearing Nut Tree. 
A moderate-sized, deciduous tree, attaining 40£t. Bark £-|in. 
thick, black or brownish-black, corky, very deeply and narrowly 
cleft vertically, so as to form thin ridges which easily break off. 
Wood white when fresh cut, turning yellowish-grey on exposure, 
hard, close-grained, no heartwood (Gamble), wholly glabrous ; 
trunk often fluted. Leaves 2 J by lin., ovate or elliptic, coriace- 
ous, sessile, glabrous or nearly so, acute at both ends, hardly 
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