62 Prof. E. N. Horsford on Giycocoll, 
We prepared it by dissolving glycocoll in strong nitric acid, 
and setting the solution over sulphuric acid to crystallize. Oc- 
casionally large tabular crystals, apparently belonging to the 
monoclinate system, are formed. Not unfrequently, however, 
the salt crystallizes in needles, especially if the fluid has been 
warmed. 
-'They do not deliquesce upon exposure to the air. They taste 
and react acid. They were dried over sulphuric acid. Combus- 
tion with chromate of lead gave the following results : 
I. 0-4509. grm. oo gave 02954 grm. carbonie acid, 
and 0:1963 grm. w 
Il. 0:4968 grm. aibeauke gave 0°3122 grm. carbonic ‘acid 
and 0 ihe grm. water. 
. Two analyses, scans to Varrentrapp and Will's method, 
gave Set a 10-04 per cent. and 10-64 per cent. of nitrogen. 
From this it is evident that this method cannot here be employ- 
ed :—a fact with regard to nitrates, to which attention has already 
been drawn by the chemists just mentioned. 
Failing in this, a determination was made by the quantitative 
method of Prof. v. Liebi 
€. proportions va carbonic acid to nitrogen in four tubes, 
were: 17:9, 14:7, 10:5, 24:11; or, together 65: 32=2: 1. 
In per cent. pehiagsn the above determinations give 
I. I. 
Carbon, - - - 17°86 NW foe B53 
Hydrogen, OH: - 4:83 4:59 nae 
Nitrogen or 20:50 
These comempenid with the formula 
NO, HO, } 
as will be seen by the annexed estimates and results of analysis. 
} | Bde _ Experiment. 
sab - - 17-49 
eae somber 
Oxygen, - 
| 
Boussingault by drying the salt at 110° C. (230° F.) obtained 
as already noticed the anhydrous compound C, H, NO,, NO,- 
Oxalate of Glycocoll. 
Gl, O, HO. 
Ain ape solution of glycocoll with oxalic acid, evaporated 
upon a watch glass, crystallizes in rays reminding one of a cross 
section of. wvaiecisies If alcohol be added to a solution of glyco- 
coll in oxalic acid, the latter in excess, the solution becomes 
with the separation of oxalate of glycocoll. If added in 
small quantities and successively, it crystallizes with the beauty 
