and some of its Products of Decomposition. 67 
Theory. Experiment. 
arbon, - 4 equiv. 24 20:92 20-66 
Hydrogen, oe ee 4:35 4-99 
Nitrogen, Lo = 14 12:20 12-65 
Oxygen, Se a? SI SO 27-92 27-81 
Oxyd of copper, = - - PG. Cee 34-61 33-89 
1147 100-00 100-00 
With the loss of an atom of water, we have the salt 
, 3 u ] 
which it will be seen is ‘precisely the composition derived from 
Boussingault’s analysis of the salt dried at 120° C. = [248° F.] 
page 373. 
Gilycocoll and Protoxyd of Lead. 
1, PbO, HO. 
This salt was prepared by dissolving with the aid of heat, prot- 
oxyd of lead (obtained from the peroxyd by long continued heat) 
in a concentrated aqueous solution of glycocoll, and the addition 
of alcohol till it began to be turbid. In a few hours it separated 
in prismatic crystals that slowly increased in size for several days, 
particularly with successive additions of absolute alcohol. The 
crystals remind one of cyanid of mercury. 
A single combustion with chromate of lead gave from 13967 
grm. substance, 0°6182 grm. carbonic acid, equal to 12:07 per 
cent. of carbon, corresponding with the formula derived from 
Boussingault’s analysis with the addition of an atom of water, 
, H, NO,, PbO, HO, 
Which requires 12°83 per cent. of carbon. 
ussingault’s analysis was made from the salt, dried at 
120° C., [248° F.,] leaving C, H, NO,, PbO. 
Gilycocoll and Oxyd of Silver. 
Gl, AgO, HO. 
Tf oxyd of silver be added to a solution of glycocoll, it readily 
dissolves with the application of heat. With the addition of alco- 
l the above compound crystallizes in wartform crystals, which 
ome dark upon exposure to light. eT” 
This salt a. not staged, as Boussingault’s analysis of it, 
dried at 110° C. [230° F.] as already noticed, gave the formula 
C | 
, H, NO,; AgO. 
There is scarcely a doubt that corresponding compounds of co- 
om] nickel, manganese and iron protoxyds with glycocoll, might 
th nearly equal facility be prepared. 
~ These clkseonpiats menneile analogous to those of ammonia 
With copper and nickel oxyds, when the latter are dissolved in the 
ie alkali. 
