114 



BEPORT — 1902. 



Qtjinonb. 



Thickness of 

 layer of liquid 

 in millimetres 



Description of Spectrum 



4 

 3 



4 and 3 

 2 and 1 



1 milligram-molecule in 100 c.c. water. 



Spectrum continuous to . . 3148 



1st Absorj)tio7i hand .... 3148-3568 



Kays feebly transmitted . . 3568-3638 

 Spectrum continuous to . . 3175 



1st Absorption hand .... 3175-3568 



Rays feebly transmitted . . 3568-3638 

 Spectrum continuous to . . 3355 



1st Absorption band .... 3355-3471 



Rays transmitted . . . 3471-3693 



Spectrum practically continuous 



to 3693 



Still weak in position of absorp- 

 tion band. 

 Spectrum continuous to , . 3754 



1 milUgram-itwlecttle in 500 c.c. water. 



Spectrum continuous to 



2nd Absorption band 



Line at . 



Spectrum continuous to 

 2nd Absorption hand 



Spectrum transmitted . 



3754 



3824 

 3824-4411 



4411 



3816 

 3816-4321 

 4321-4656 



1 milligram-molecule in 2,500 c.c. water. 



Spectrum continuous to 

 2nd Absorption band 



Rays transmitted . . 



Spectrum continuous to 

 2nd Absorption hand 



Rays transmitted . 



Spectrum continuous to 

 2nd Absorption band 



Rays transmitted . 



Spectrum continuous practically 

 to 



Still very weak in position of 

 absorption band. 



3816 

 3816-4321 

 4321-4656 



3886 

 3886-4306 

 4306-4656 



3886 

 3886-4240 

 4240-4656 



4656 



1 milUgram-moleoide in 12,500 c.c. water. 



Spectrum practically continuous 

 to 



Still very weak in position of 

 absorption band No. 2. 



Same as 6. 



Spectrum practically all trans- 

 mitted. 



4656 



3176 

 3176-2802 

 2802-2748 



3149 

 3149-2802 

 2802-2748 



2980 

 2980-2881 

 2881-2707 



2707 



2663 



2663 



2615 

 2615-2267 



2267 



2620 

 2620-2314 

 2314-2147 



2620 

 2620-2314 

 2314-2147 



2573 

 2573-2322 



2322-2147 



2573 

 2673-2368 

 2358-2174 



2174 



2147 



