276 Scientific Intelligence. 
with small perforations in the upper side, for escape of the gas. The 
height of the lamp, between the upper and lower sheets of gauze, is 5} 
inches; its width across the top 4 inches, and across the bottom 6 inches. 
The only alterations which I have made, consist in the addition of the 
tubulure, 6, and the wire gauze across the bottom. It is obvious that 
open, blue flame. hen used as a safety-lamp it is, of course, to be 
and burn in the interior, while some would lie in the spheroidal 4 | 
upon the gauze itself, until evaporated: showing that, if one were dis : 
any kind of danger. A similar safety-lamp could easily be constructed 
for using alcohol instead of gas. 34 
_ Boston, February, 1862. rice 
12. Description of a new Fusible Alloy; by B. Woon, M.D.—In a a 
Journal for Sept., 1860, will be found a notice of the cadmium alloy : 
c 
A brief description of another alloy similar in character and rf less 4 
remarkable, is herewith submitted. It consists of, in 
mium 1 part, Jead six parts, bismuth 7 parts. 
This alloy melts at about 180° Fahr. ener 
the meltin 
