ABSORPTION SPECTRA OP THE ALKALOIDS. 
505 
2 cub. centims. diluted to 20 cub. centims. =1 in 10,000. 
Thickness of 
layer of liquid. 
Description of spectrum. 
, Wave-lengths. 
millims. 
10 
Continuous to. 
3610 
Very feebly continuous from .... 
3600 to 3456 
Weakening of the spectrum between . 
3171 and 2863 
9 
Same as last, but stronger. 
8 
Same as last, with this exception. 
7 
Same as last. 
6 
Strong, continuous. 
3982 
Weak, continuous to. 
3600 
Rays transmitted to. 
2568 
5 
Strong, continuous to. 
Weak,continuous. 
3245-5 
Paint, continuous to. 
Not continuous, but the lines are 
strongly marked to. 
2568 
2545 
4 
Continuous to. 
3245-5 
Spectrum extends to. 
2421 
3 
This spectrum is continuous to . 
2310 
2 
Continuous spectrum to. 
2259 
1 
Same as last spectrum, but slightly 
stronger all through. 
Veratrine. From Messrs. T. and H. Smith and Co. Plate 56, fig. 4. 
0‘1 grin, in 20 cub. centims. of alcohol of sp. gr. 0*8. 
Thickness of 
layer of liquid. 
Description of spectrum. 
Wave-lengths. 
millims. 
5 
Continuous to. 
3145 
4 
Continuous to. 
3132 
3 
Continuous to. 
3111 
2 
Continuous to. 
3034 
Absorption band. 
3034 to 2848 
Rays weakly transmitted to ... . 
2747 
1 
Continuous to. 
3016 
Absorption band. 
3016 to 2860 
Rays transmitted to. 
2747 
Rays weakly transmitted to end of 
spectrum at. 
2707 
