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the Existence of an Yy mmonium and Bi 
and on another new Test for the presence of Nascent Hydrogen ; 
by Ars Gatiatin, M. D., of Ammonium had 
never yet been seen united with any other metal than mercury. 
Mercury being the only metal fluid at ordinary temperatures, should 
another alloy be formed it would be solid. Some bismuth was 
melted in a porcelain dish and alloyed with sodium by dropping a 
piece of that metal on the clear surface of the fluid bismuth. 
On dissolving sulphate of copper in distilled water and placing 
the well-dried bismuth therein, the characteristic flocculi of ammo- 
pped in ; 
coated with that metal, owing to the nascent hydrogen escaping 
m the water. e hydr 
he tee : 
shown by the pores which are formed by the escaping gases in 
. both cases. In may be seen produced 
by the escaping ammonium long after the water has exhausted the 
In the mercurial body the pores are evanescent; in the 
e 
Am. Jour. Sct.— Szconp Series, VOL. XLIX, No. 146.—Marcg, 1 
17 
case of bismuth they: remain, and may be examined at leisure, 
