666 
DE. A. MATTHIESSEN AND ME. G. C. FOSTEE ON 
We propose to call them as follows : — 
I. C 19 H 17 N0 7 , nornarcotine. 
II. C 20 H 19 N0 7 , methyl-nornarcotine. 
III. C 21 H 21 N0 7 , dimethyl-nornarcotine 
IV. C 22 H 23 N0 7 , trimethyl-nornarcotine (or ordinary narcotine). 
It need hardly be mentioned that endeavours will be made to reform ordinary narco- 
tine from the above derivatives, and to make ethylated narcotine, as the decomposition 
of this substance may lead to the formation of ethyl-opianic acid, and a series of acids 
homologous to those described in this paper. 
In conclusion we have much pleasure in thanking Messrs. Macfarlane and Co. of 
Edinburgh, for their liberality in presenting us with a large quantity of pure narcotine 
with which the experiments above described were carried out. 
6. On the Crystalline Forms of some of the abovementioned substance. 
By Professor Victor v. Lang. 
(a) Acid derived from meconin, C 9 H 8 0 4 . 
System monoclinic : — 
a:b= 2-7864:1, 
ac= 127° 56'. 
Observed forms: — 
( 110 ), (0 01 ). 
1 1 0, 1 1 0 = 49 56 observed. 
1 1 0, 0 01 = 78 20 
The observed forms do not completely determine the crystallographic elements. The 
crystals are perfectly cleavable, parallel to the plane (0 0 1). 
(b) Acid derived by the actionof nitric acid on the hypogallic acid, C 8 H 6 N 2 0 8 , H 2 O. 
System monoclinic : 
— 
a:b:c= 1-0122 : 1 : 0*7156, 
o 
5^ 
o 
i—i 
II 
Observed forms : — 
(0 01), (110), (111). 
Calculated. 
Observed. 
110, 
1T0 = 88 58 
o 1 
110, 
TlO = 91 2 
*91 2 
110, 
001 = 80 4 
o 
00 
* 
Til, 
001 = 49 40 
49 38 
Til, 
TTl = 65 40 
*65 40 
Cleavage very perfect, parallel to the planes (110). 
