ON ABSORFTION SPECTRA AND CHEMICAL, CONSTITUTION. Uo 



prNlTEOSO-PHEyOL. 



CeH^.OH.NO. 



Thickness in 

 layer of liquid 

 in millimetres 



Description of Spectrum 



20 

 15 

 10 

 5 

 4 

 3 

 2 

 1 



1 milligram-violecule In 100 c.c. alcohol. 



Spectrum continuous to 



1 milli gram-mole oule in 500 c.c. alcohol. 



Spectrum continuous to 



»i »f )» • 



1st Absorption hand 



Line showing feebly at 



Spectrum continuous to 

 1st Ahsorptio)i hand 



Rays transmitted . 

 2nd Absorption band 



Spectrum weak towards end 



Spectrum continuous to 

 1st Absorption hand 



Spectrum transmitted from . 

 2nd Absorption band 



Lines showing at . 



Rays transmitted from . 

 The latter part very weak and 

 consisting of single lines only. 

 Spectrum continuous to 

 1st Absorption band 



Rays transmitted from . 



2673 



2714 

 2714-3886 



3886 



2768 

 2768-3824 

 3824-3886 

 3886-4321 

 4321-4555 



2768 

 2768-3824 

 3824-3886 

 3886-4306 



4119 



4128 



4245 

 4306-4656 



2982 

 2982-3568 



3568-4656 



1 milligram-moleciile in 2,500 c.c. alcohol. 



Spectrum continuous to 

 1st Absorption band 



Eays transmitted from . 



Spectrum continuous to 

 1st Absorption hand 



Rays transmitted from . 



Spectrum continuous to 

 1st Absorption hand 



Rays transmitted from . 



Spectrum practically continuous to 



But still weak in position of ab 

 sorption band. 



Same as 2, but stronger. 



2982 

 2982-3568 

 3568-4656 



.3064 

 3064-3568 

 3568-4656 



3148 

 3148-3491 

 3491-4656 



4656 



3741 



3684 

 3684-2573 



2573 



3612 

 3612-2615 

 2615-2573 

 2573-2314 

 2314-2195 



3612 

 3612-2615 

 2615-2573 

 2573-2322 



2427 



2422 



2355 

 2322-2147 



3353 

 3353-2802 



2802-2147 



3353 

 3353-2802 



2802-2147 



3263 

 3263-2802 

 2802-2147 



3176 

 3176-28S4 

 28G4-2147 



2117 



