ABSORPTION SPECTRA OP THE ALKALOIDS. 
495 
•1 grm. in 20 cub. centims. of alcohol of sp. gr. O'8, diluted 2 cub. centims. to 
50 cub. centims. —1 in 5000. 
Thickness of 
layer of liquid. 
Description of spectrum. 
• 
Wave-lengths. 
millims. 
5 
Continuous to. 
31235 
Absorption band from. 
3171 to 2568 
Rays transmitted faintly to ... 
2490-5 
4 
Continuous to. 
2976-5 
Absorption band from. 
2976-5to2740 
Rays transmitted to. 
2469-5 
3 
Continuous to. 
29.76-5 
Absorption band. 
2976'5to2863i 
Rays transmitted to. 
2418 
2 
Continuous to. 
2863 
Fairly strong but not continuous . 
2863 to 2653 
Continuous to. 
2472-5 
1 
Continuous to . 
2466 
Papaverine. From T. and H. Smith and Co. 
0'1 grm. in 40 cub. centims. of alcohol of sp. gr. 0'8. 
Thickness of 
layer of liquid. 
Description of spectrum. 
Wave-lengths. 
millims. 
5 
Continuous, strong to. 
3403 
4 
Continuous, strong to. 
3403 
3 
Continuous, strong to. 
3403 
Continuous, weak to. 
3352 
2 
Continuous, strong to. 
3352 
1 
Continuous, strong to. 
3352 
Paint to. 
3330 
'1 grm. in 40 cub. centims. of alcohol of sp. gr. 0'8, diluted 2 cub. centims. to 
10 cub. centims. 
Thickne ; s of 
layer of liquid. 
Description of spectrum. 
Wave-lengths. 
millims. 
5 
Continuous, strong to. 
3982 
Paint to.. 
3468 
4 
Continuous, faint to. 
3352 
3 
Continuous to. 
3352 
2 
Continuous to. 
3330 
i 
Continuous to. 
2980 
