606 



ABSORPTION SPECTRA OF PIGMENTS IN VITRO 



CHAP. 21 



The absorption curves given by Mackinney (1938, 1940, 1941) and 

 by Winterstein and Stein (1933), although less detailed, agree satisfactorily 

 with figure 21.1; but those of Sprecher von Bernegg, Heierle and Almasy 

 (1935) and of Hagenbach, Auerbacher and Wiedemann (1936) show con- 

 siderable deviations, illustrated by Tables 21.1. 



Table 21.1. Chlorophyll Solutions in Ethyl Ether 



Table continued 



