Technical Chemisiry. 271 
by stopping the clock-work—From Stamm’s Illustr. Zeitschrifi, 1859, 
p. 8382; in polylechnisches Notizblatt, 1860, xv, 56. 
8. Method of employing carbonic acid in connection’ with the hypochlo- 
rite of lime used for bleaching paper-stock—An apparatus dev se by 
Fieuw Dinor and Barrvet of Paris, for introducing carbonic acid, 7 
pared by burning charcoal, into the solution of hypochlorite of lime, 
(bleaching salt,) while the Jatter is in contact with the fibre which is to 
be bleached, is described in the Nov., (1859,) No. of Barreswil’s. Réper- 
toire de Chimie, Appliquée, vol. i, p. 457. ; 
e carbonic acid on being introduced into the solution of bleaching 
salt, unites with the lime, thus setting free hypochlorous acid, the 
izing action of which is infinitely more energetic when it is at liberty 
than when in combination with a base. 
then carefully tested. As the result of these experiments, it appeared 
id than the old 
2 
o 
@D 
oe) 
| 
° 
3 
& 
oO 
J 
ce 
be} 
_ 9. New “ fusible metal.”—Dr. B. Woon of peal Be ikbO) ri 
cured a pa 7 > Scientifie Artizan, Cincinnati, May 5th, ») 10F 
oe ect (Weekly Scientific Artiza bismuth, which fuses at 
temperature between 150° and 160° F, The constituents of this fusible 
aed ther desired qualities of the alloy— 
Viz: ca nit n - od fi 
Parts; lead four parts, It is recommended as being especially us od 
all light castings re uiring a more fusible material than Rose's or Newton 
s 
