82 DR ANDERSON ON CODEINE, AND 
soluble in water and dilute spirit, and is thrown down from the latter solution 
by ether in the form of fine yellow scales. Its analysis gave the following 
results :— 
1:753 +++ of carbonic acid, and 
8-723 grains, dried at 212°, gave 
2090 --- of water. 
9-880 grains, dried at 912°, gave 4:100 grains of platinum. 


7-734 3196 
Experiment. Calculation. 
bc a a a ee a 
I. lute 
Carbon, . 5 3 5:48 oe 5:06 C, 12 
Hydrogen, 4 , 2°66 tee 2°52 H, 6 
Nitrogen, 5 oo te 5:90 N 14 
Chlorine, 3 : tee oo 44-91 Cl, 106°5 
Platinum, c : 41-49 41°32 41-61 Pt 98°7 
100-00 237°2 
The formula of the salt is therefore C,H, N H Cl Pt Cl,; and the base is, 
consequently, the methylamine of Wurrz, with whose description of that sub- 
stance and its platinum salt it perfectly agrees. 
The preparation of the platinum salt of the other base was attended with 
much greater difficulty ; and I did not succeed in obtaining it quite free from 
methylamine. In order to obtain it, the fluid which had deposited the methyla- 
mine salt was evaporated to a small bulk, the salt which separated filtered off, and 
ether added to the mother-liquor. Immediately a precipitate is obtained, generally 
in the form of minute yellow-needles, but sometimes in scales. It is sparingly so- 
Juble in alcohol and ether, and highly soluble in water, from which it crystallises 
in long needles, and with such facility, that a few drops evaporated on a watch- 
glass leave the salt they contain in the form of five or six needles crossing the 
whole space occupied by the solution. The quantity of this salt which I had at 
my disposal was too small to admit of my carrying its purification by recrystal- 
lisation as far as was to be desired, and, consequently, a small quantity of methy- 
lamine remained in those subjected to analysis. 
2-485 ++ of carbonic acid, and 
1:800 «+ of water. 
{Paes grains of platinum salt, dried at 212°, gave 
I 
10:475 grains platinum salt, gave 3-951 grains platinum. 
‘ 2:432 .. sis 
6:475 oa a 
Experiment. Calculation. 
oie II. 
Carbon, . 2 kK 12:27 na 13-57 C, 36 
Hydrogen, : ; 3:62 Le 3:77 ls 10 
Nitrogen, ses se 5:27 N 14 
Chlorine, . ; we see 40:18 Cl, 106°5 
Platinum, : : 37°71 37°56 37:21 Pt 98:7 



