DR. KANE ON THE CHEMICAL HISTORY OF ARCHIL AND LITMUS. 283 
These substances had been dried at 212° in Liebig’s drying apparatus with a cur- 
rent of air. 
These results give the composition in 100 parts : 
A. 
B. 
Carbon . . . 
27*92 ' 
27*46 
Hydrogen . . 
2-96 
2-72 
^ 100-00 
Oxygen . . . 
23*50 
23*92 
Oxide of lead . 
45-62. 
45*90 . 
The simplest formula by which these results can be expressed is C u H 6 0 7 + PbO, 
which is very simply related to that of erythryline, C n H 8 0 3 . To show, however, the 
connexion between erythrine and erythryline, the number of equivalents of carbon is 
taken as twenty-two, and then the origin of the amarythrine becomes extremely sim- 
ple. The erythrine being C 22 H 13 O s „ the amarythrine is C 22 H 13 0 14 , being formed 
by the absorption of five equivalents of oxygen. The calculated results of both for- 
mulae are subjoined. 
11 Carbon . . 
67*1 
27*88 
22 Carbon . . 
134-2 
27*805 
6 Hydrogen . 
6-0 
2-49 
13 Hydrogen . 
13-0 
2-690 
7 Oxygen . . 
56-0 
23-26 
14 Oxygen . . 
112-0 
23-225 
Oxide of lead 
111-6 
46-37 
2 Oxide of lead 
223-2 
46-280 
240-7 
100-00 
482-4 
100-000 
Both agree well with experiment ; the latter, however, best. 
IV. Of Telerythrine. 
When the semifluid amarythrine is exposed for a long time (several months) to the 
action of atmospheric air, it gradually changes into a mass of very minute granular 
crystals of a brownish yellow colour. These are very soluble in water, but less soluble 
in alcohol, by means of which they may, without much loss, be washed from adhering 
portions of unaltered amarythrine, and so obtained almost completely white. They 
can scarcely be purified by re-crystallization, as if re-dissolved in water the solution 
may remain for a long time before it again forms crystals. It is insoluble in 
ether. 
The telerythrine is neutral to test paper. It combines with metallic oxides, form- 
ing precipitates which are very nearly quite white. Its taste is sweetish bitter. Am- 
monia acts on it much less rapidly than on the body last described, but ultimately 
the ammoniacal liquor becomes deep wine-red. 
The following analyses were made of crystallized telerythrine dried carefully by 
pressure between folds of blotting paper, but without exposure to heat. 
A. 0-506 of substance gave 0 - 819 of carbonic acid, and 0-172 of water. 
B. 0-473 of substance gave 0*775 of carbonic acid, and 0-156 of water. 
2 o 2 
