MISCELLANY. 
317 
To ascertain the purity of Myrrh. By M. Righini — Let it be finely 
pulverised and saturated for a quarter of an hour, with an equal weight 
of sal-ammoniac in powder, then add gradually fifteen times its weight 
of water. If the mixed powder dissolves quickly and entirely, the 
myrrh is pure. — Chem.from Journ. de Chem. Med. 
Formula for Bochefs Ioduretted Syrup. — The formula of this syrup, 
which is very much in use at Lyons, has been communicated to us by 
M. Bertrand, pharmacien of that city. It is the following : — 
R. Sarsaparilla - *| 
Sassafras - - j 
Guaiacum - }• aa 1 kil. 
Squills - - | 
Senna J 
Two decoctions are made in a sufficient quantity of water ; they are 
mixed and reduced to 8 kilogrs. ; 5 kil. of sugar and 5 kil. of honey 
are added; it is clarified with white of egg. and a syrup is made at 28°; 
it is heated after cooling, and 125 grammes of the tincture of iodine oi 
the codex is added. 
This syrup contains per 100 grammes, 1 gramme of the tincture. It 
is advantageously employed in swellings of the glands, especially of 
the thyroid gland, rachitis, scrofulous affections, degenerated venereal 
diseases and gout. A great number of cures have proved its efficacy. — 
lb. from Chem. Gaz. 
On a new Product resulting from the Decomposition of Urea. By Fr. 
Wohler, and J. Liebig. — When perfectly pure dry urea is submitted 
to slow distillation, the greater portion of it is converted, not into 
cyanuric acid, but into a new body, which may be regarded as cyanu- 
rate of ammonia from which the elements of 2 equiv. carbonic acid 
have separated. In its behaviour it belongs to the series of the mel- 
lon compounds. On exhausting the residue of the distillation with a 
large quantity of boiling water, this product of the decomposition re- 
mains undissolved. In its dry state it forms a shining white powder, 
and is perfectly insoluble in boiling water, readily soluble in alkalis 
and acids, from which it is precipitated on neutralization. On the 
further action of these solvents, it is decomposed into ammonia and 
cyanic acid. Heated when dry, it leaves a lemon coloured residue, 
which on strong ignition is decomposed into cyanogen gas and nitro- 
gen. The formula for this compound is C 6 N 4 H 4 4 . — Chem. Gaz. 
from Ann. dcr Chem. und Pharm. 
On the Chemical Constituents of the Flores Chamomillce Romance and 
anthemis nobilis. — M. Schendier has separated a peculiar acid from the 
