372 Scientific Intelligence. 
tic, propionic, patie valeric, and carbolic — a dub 
caproic, caprylic, and succinic acids, were detected. The su 
ric a3 pitas ‘which the smoke had Bee eed, which was t ik 
eatted to fractional distillatio The bases were adil farther puri 
fied by re-crystallization of their latinum salts. In this way the 
whole series of the so-called pyridine bases was obtained, as fol 
lows: Pyridine C,H, . ee C,H,N, Lutidine C,H,N, Cot 
lidine C,H, ,N, Barvoline C,H. ,N, Coridine C,,H,,N, Rub 
dine C,,H.-N, and ee wdel Viridine O,,H,,N. No traceof 
nicotine was found. 
he authors investigated pe hysiological action of (1) those 
— volatile = 160° and (2) of those Use: between 160° 
ridine 
line bases, and not to nicotine. They explain the fact that stronget 
tobacco can be smoked in cigars than in a pipe, by finding 
mo 
e authors compared this. action with gi of the he 
obtained from other plants used for smoking; with those *. 
sone, willow wood and stra ae Ae and with pure F nthe 
oghea ad coal. The action was entirely siento, but gr 
pines of the willow wood bases, they produced no Ce pro 
tion of the pupil. — Picoline 3 in vapor ‘is see ca os end et 
i 
ES 
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a 
: 
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4 
a 
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2 
