Chemistry and Physics. 471 
SCIENTIFIC INTELLIGENCE. 
I. CHEMISTRY AND PHysIcs. 
ir Damper for Balances. aia order to reduce the time 
of bistilasion of a balance to a minimum when in use, ARZBERGER 
has proposed the use of a damping ssosens containing air. To 
the stirrup, immedi ied under the end of the beam, a circular 
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attached by a screw in the cente 
has a hole on one side of this screw; so that by oe the cyl- 
inder, the hole may be closed m ore or less completely by the 
brass strip. When the balance swings, the plate moves up and 
down in the cylinder, the oscillation being checked by the resist- 
ance of the air in the box, which may be adjusted at pleasure. 
The working of the attachment is said to be very eg ctory, 
since the damping is a dynamic and not a static resistan 
delicacy is not at all ‘techies with.——Liebig’s Annaten, elxavi, 
382, Oct t., os 
%. On a Convenient method of Preparing Sulphuryl ‘Chloride 
ides fd in order to investigate the r — ot the carba- 
ffin 
ath to 170°-180°. A brilliant ‘tile liquid, toiling at 70°, and 
with an exceedingly irritating odor, was obtained, which ad a 
: aoc gravity of 1°661 and was the body in question. Its pro- 
uction is thus represented :— 
me cl OH 
6] = 80.Cl, +80, | OF. 
so, 10 “eo 
—Ber. Berl. Chem. Ges., Napa 1004, ope 18 G 
3. Action of diute Mine 1 Acids on Bleachin ng Pow 
y Gay Lussac and recently denied by Gépner, and if so, in what 
vigcon oes rene so Sorainad was Pyose from pure slaked 
