Foreign Laterature and Science. 859 
instead of a cork, a portion of the water will be found to 
have evaporated and passed off through the membrane, and 
the wine left will be found proportionably stronger. If a 
bladder half filled with alcohol of the specific gravity of 867, 
and having its orifice closed, be exposed to the sun, the air, 
er the heat of a stove, ina short time the alcohol will be 
found rectified to 817 sp. gr. and in this manner all the wa- 
ter may be evaporated. If the same bladder with its con- 
tents, be then exposed to a humid atmosphere (as in a damp 
cellar) it will imbibe water, and return to 867 sp. gr. which 
water may be again separated by hanging it in a dry place. 
{in one word, the bladder is a filter, which suffers water to 
pass through it but not alcohol.—Tilloch’s Phil. Mag. Jan. 
1820. 
Hydrophobia. 
It has been discovered by the inhabitants of Gadici in 
Italy, that near the ligament of the tongue of the man or an- 
imal bitten by a rabid animal, and becoming rabid, pustules 
of a whitish hue make their appearance, which open spon- — 
taneously about the 13th day after the bite; and at this 
time they say, the first symptoms of true hydrophobia make 
their appearance. Their method of cure consists in open- 
ing these pustules with a suitable instrument, and making 
the patient spit out the ichor and fluid which run from 
them, often washing the mouth with salt water. This ope- 
ration should be performed the ninth day after the bite, 
he remedy is so effectual, that with these people this hith- 
erto incurable disease has lost its terrors. —Bibl. Ital. quoted 
by Tilloch, Jan. 1820. 
Thermometer. 
Sanctorio invented the thermometer in 1590, but it was 
not reduced to a correct standard till 1724, by Fahrenheit 
ef Amsterdam. 
New geometrical work. 
* An introduction to solid geometry, and to the study of 
crystallography, containing an investigation of some of the 
