66 | Scientific Intelligence. 
them with their time-values, a table may be obtained from these 
data, either by direct or by graphic interpolation, from which, 
knowing the time-value for any salt, its mene point can be ob- 
tained.— Jour. Chem. Soc., xxxi, 365, April, 1877. .F.B 
ew Vapor Density Method. fest ocean and C1aAMICIAN 
ve modified somewhat Victor Meyer’s method of fixing vapor 
densities, and by substituting mercury for fusible metal, have 
contrived an oer which is Han See aa effective. A glass 
5. On the oo of Ipdbabeliae. — Bourierow has 
obtained a curious body, which he calls isodibutylene, by _ ba 
action of diluted sulphur acid upon pip eniteiac soi It i 
ng 
on the iodide thus obtained, giving rise to a new oc Sets! Danek 
isodibutol, having a characteristic smell of camphor, and boiling 
at 146 6°-147°5°. When isodibutylene or isodibutol is ape 
with chromic acid, the principal products are acetone and trime- 
thyl-acetic rapt "hence the constitution of the iyarotaibe: is 
ae ot 
represented by the formula © HI>o=C 0<CH.. It is isobuty- 
CH, 
lene, in which an atom of caviar belonging apparently to 
the ‘methylene group, is a by tertiary butyl.— Zoo oe 
as Il, xxvii, 370, April, 1877. G. 
6. New method of producing Salicylic acid, rents whe 4 
studied some time ago the action of sodium on poe ether, 
now finds that if the action be te Joe ntinued, t 
yeotcton of this substance in this way is Hips! nero 
because 
vial —CO—CH. COOH 
én, C0. ¢H.coon? is a member of the fatty series, while 
salicylic acid, C,H, 1 Sat belongs to the pine it shows & 
conversion of one into the other, the closed ring o arbon — 
atoms in the former suffering a further condensation fee eves op-. 
