CONTINUATION OF ACCOUNT OF CRYPTOPIA. 
717 
ANALYSES OF CHLORIDES. 
Crvptopia appears to form two combinations with II Cl, one C 23 II 05 XO 5 
2 II Cl, 6 II.O ; and the other. Cog II^^ NOg IICl, 5 II^O. 
Bichloride .— IVater of Crystallization. 
IC ‘8 grs. lost on drying at 212° F., 2*9 grs., on further drying at 240° F. for 
three hours, the totaHoss was 3*15 grs. = 18*7 per cent, water. 
Chlorine. 
7*7 grs. crystals of chloride, wh.en burnt with lime, and the solution of the 
contents of the tube in nitric acid, precipitated by nitrate of silver, gave 3*92 
chloride, equal to *97 chlorine = 12*G per cent, chlorine. 
Theory. 
Experiment. 
C 
> 
Eq. 
397 
Per cent. 
I. II. 
2 Ci 
71 
12*32 
12*G 
Cil.O 
108 
576 
18*7 
18*7 
hProtochloride .— Whaler of Crystallization. 
1G*99 grs. dried for some hours, at 240° F., lost 2*8 grs. = IG'47 per cent, 
water. 
Chlorine. 
I. 5*51 grs. of the crystals, when burnt with lime, and the dissolved chloride 
precipitated by nitrate of silver, yielded 1*G5 chloride of silver =*408Cl = 7*4 
per cent. 
II. 7*3G crystals gave 2*12 chloride of silvers 7*1 per cent. Cl. 
III. 4*4 grs. of the dried chloride, equal to 5*2G7 grs. of the crystals, yielded, 
when treated in a similar manner 1*415 chloride of silver•35C1= 6*G4 per 
cent, in the crystals. 
Theory. 
Experiments. 
C 23 lI, 6 NO, 
Eq. Per cent. 
39G 
r 
I. 
II. III. 
Cl 
35’5 G *8 
7*4 7*1 
oILO 
90 17*2 
521*5 
lG-47 
Platinum Salt. 
F. 
G-G4 
Prepared by adding an excess of bichloride of platinum to a dilute II Cl solu¬ 
tion of the chlorides. 
I. 5*09 grs., when burnt, yielded 0 84 gr. metallic platinum = 1G*5 per 
cent. 
II. 6*1G grs,, when burnt, yielded 0*8G gr. metallic platinum, equal to 1G*GG 
per cent. 
The amount of platinum per cent, in the salt of the composition 
(C 23 lL,N 05 lICl).,PtC], should be 1G*4. 
To our friend Mr. Brady, of Newcastle, our thanks are due for the accom¬ 
panying diagram and description of the crystalline forms assumed by cryptopia. 
“ The alkaloid itself has much better dellned crystalline forms than any of its 
