RESEARCHES UPON SALICIN. 
157 
liberated, and the chloride combines with the alkali. On ana- 
lysis of chlorosamide — 
I. 0.532 of the matter gave 0.165 water, and 1.00 car- 
bonic acid. 
The nitrogen was ascertained by the process of M. Dumas. 
-I. 0.600 chlorosamide gave 33.5 centimetres of gas saturat- 
ed with moisture at 15°, pressure ra .752. 
II. 0.600 gave 33. centimetres saturated at 15.5 pressure 
m .751. 
For the chlorine — 
I. 0.600 matter gave, 
0.522 chloride 
of silver. 
The formula best agreeing with these results is — 
C 28 
1070.16 
56.52 
H 10 
62.4 
3.30 
O 2 
200.00 
10.57 
N 4 ' 3 
118.00 
6.23 
Ch 2 
442.65 
23.3S 
1893.21 
100.00 
Ammonia acts upon the bromide in an exactly similar man- 
ner, producing water and bromosamide, corresponding in 
composition with chlorosamide. 
Salicin in combination. 
I was not able to combine salicin either with acids, ammo- 
nia or the oxide of a number of metals ; the oxide of lead 
alone uniting with salicin. 
To obtain this compound a few drops of ammonia were 
added to a hot solution of salicin, and then a solution of tris- 
acetate of lead, which caused a copious precipitate; this addi- 
tion was continued until one-half of the salicin was precipi- 
tated. This precipitate was then thrown on a filter and wash- 
ed with boiling water. The salicinate of lead is a light white 
powder, both sweet and bitter to the taste. It is soluble in 
acetic acid and potassa. The acids decompose it readily, set- 
ting salicin free. Sulphuric acid produces a red color. It does 
not lose water when heated to 200°. 
vol. v. — NO. II. 20 
