84 DR ANDERSON ON CODEINE, AND ITS PRODUCTS OF DECOMPOSITION. 
great abundance. I have not yet determined the whole circumstances under 
which this change takes place, but reserve this for a future communication.* 
I have likewise examined the action of iodine on codeine, which yields a mag- 
nificent crystalline compound presenting the phenomena of pleochroism in a re- 
markable manner. Difficulties connected with the analysis have, however, pre- 
vented my hitherto completing its investigation. 
The following is a Tabular View of the constitutions of the substances de- 
scribed in this paper :— 
Codeine, 
crystallised, 
Hydrochlorate, . 
Hydriodate, 
Sulphate, 
Nitrate, 
Phosphate, 
Oxalate, : 
Hydr Henlhineyante® | 
Platinum salt dried at 212°, 
crystallised, 
Amorphous codeine, 
Nitrocodeine, 
Sulphate, . 
Platinum salt, 
Bromocodeine, 
hydrate, . 
terhydrate, 
Hydrobromate,, . 
Platinum salt, 
Tribromocodeine, 
Hydrobromate, . 
Platinum salt, 
Chlorocodeine, 
terhydrate, 
Sulphate, . 
Platinum salt, 
Dicyanocodeine, . 
Metacetamine, 
C,, H,, NO,. 
C,, H,, NO, + 2HO. 
C,, H,, NO, HCl + 4HO. 
C,, H,, NO, HI + 2 HO. 
C,, H,, NO, HO $0, + 5 HO. 
C,, H,, NO, HO No,. 
(C,, H,, NO, HO) 2 HO PO, + 3 HO. 
1 H,, NO, HO 6, 0, + 3 HO. 
., NO, HC, NS, + HO. 
., NO, HCl Pt Cl, + HO. 
,, NO, HCl Pt Cl, + 3 HO. 
NO,. 
» (NO,) N 
, (NO,) ae “HO 80,. 
(NO,) NO, HCl Pt Cl, + 4 HO. 
Br NO,. 
mae 
jal 
~ HL, 
Hea: 
H 
pth 
eer 
H, 6 
ag Lp, Br NO, + HO. 
se HL DE NO; +3 HO: 
C,, H,, Br NO, HBr + 2 HO. 
C,, H,, Br NO, HCl Pt Ch. 
C,, H,, Brs NO,. 
2 (C,, H 1s Br, NO,) 3 HBr. 
C,, H,, Br, NO, HCl Pé Cl.. 
CF He Ch NOE 
C,, H,, Cl NO, + 3 HO. 
C,, H,, C1NO, HO SO, + 4 HO. 
C,, H,, Cl NO, HCl Pt Cl. 
GC. sna NOL2 CoN. 
C, H, N. 
* The action of nitric acid on the organic alkalies, in this point of view, is now under investigation 
in my laboratory. Narcotine has been found to undergo a precisely similar change, yielding a compound, 
which gives off a volatile base by ebullition with potash, and a whole series of other substances, the con- 
stitution of which will be detailed so soon as the investigations are completed. 
