476 Scientific Intelligence. 
nio-silver nitrate it gives the sages characteristic of an aldehyde, 
Oxidized with chromic acid i t gives acetic and propionic acids, 
with a it — ca mpborie acid. The eee. of the oil not 
pght. 7. GHO,, C,H, .C,H,0,; Croll Cs H eGaant (t) ethyl: 
borneol oxide, C, Hy .O.C, tha — Ber. Be ri. Chem. . 
449, March, 1878 
Panereatie est N has succeeded by the pion of 
the pean ine ferment u ve eo blood fibrin, in preparing hyp 
xanthin an ably also xanthin itself. ormer has 
easiest: mes as a ee of putrefaction hitherto.— Ber. 
ek Chom hem. Ges., xi, 574, April, 1878, eB 
8. The present Condition of Sa a Meteorology. —Pataiert, 
the Director of the observatory upon Vesuvius, has published in 
the Atti della R. Accad. di Napoli, VII, p. 1-20, 1877, a resume 
of his observations upon the electricity of the air, which he has 
conducted during the past twenty-seven years e also gives a 
description of the apparatus which he has found best suited to his 
purpose. The electrometer resembles, at first sight, that of Dell- 
man; it differs, however, essentially from the latter. The suspen- 
sion of the needle is bifilar and the repulsion between the fixed arm 
and the needle is not due to the repulsion of two bodies charged 
by conduction to the same amount, but is the result of induced 
cha 
by means of a minnaa The chief peculiarity of the conductor 
consists in this, that it ends in a plate twenty-seven centimeters in 
diameter, and the connection with the electrometer is broken just : 
as the conductor reaches the limit of the height to which it is 
raised, which is about 1°5 meters, : 
ith feeble electrical condition the first swing of the needle is 
the double of its final deflection. With large differences of 
potential the fall ¢ of deflection is less. This diminution of indica- 
sean electroscope an 
The ada ‘lieve that 
