ABSORPTION SPECTRA OF THE ALKALOIDS. 
483 
No. 1 . Aconitine. Exotic aconitine, probably German ; rather inert. 
O'l grm. in 20 cub. centims. of alcohol of sp. gr. 0'8. 
Thickness of 
layer of liquid. 
Description of spectrum. 
1 
Wave-lengths. 
millims. 
10 
Continuous to. 
3245-5 
9 
Continuous to. 
3245 5 
8 
Continuous to. 
3245-5 
7 
Same as last 
6 
Continuous to. 
3245-5 
5 
Continuous to. 
3130 
Spectrum extends feebly to ... 
2863 
4 
Continuous to. 
2948 
Spectrum extends feebly, but not con¬ 
tinuous to. 
2568 
3 
Continuous to. 
2948 
A feeble spectrum extends to ... 
2568 
2 
Continuous strong to. 
2863 
A feeble spectrum extends to 
2568 
1 
Continuous to. 
2863 
Spectrum extends weakly to ... 
2568 
0‘1 in 20 dilutes 2 cub. centims. to 10 cub. centims., or O'l grm. in 100 cub. centims. of 
alcohol of sp. gr. 0*8. 
Thickness of 
layer of liquid. 
Description of spectrum. 
Wave-lengths. 
millims. 
5 
Continuous to. 
2863 
A feeble spectrum extends to 
2568 
4 
Continuous spectrum to. 
2542 
3 
Same as last 
2 
Continuous spectrum to. 
2472-5 
1 
Continuous to. 
2472-5 
Spectrum extends feebly to ... 
2387 
O'l grm. in 500 cub. centims. of alcohol of sp. gr. 0'8. 
Thickness of 
layer of liquid. 
Description of spectrum. 
Wave lengths. 
millims. 
5 
Continuous to. 
2387 
Spectrum extends faintly to ... 
2259 
4 
Same as last up to. 
2259 
Spectrum extends feebly to ... 
2144 
3 
Same as last. 
2 
Same as last, but stronger. 
1 
Same as last. 
