SELECTIVE SCATTERING OF LIGHT 



101 



is not primarily due to selective absorption of nonselectively scattered 

 light within the scattering cell. 



cells which scotter observed light 



Suspension vessel 



(cleor plexiglos, outside 

 surfaces painted black 



25/e" 



i. 



Position of filter for fluorescence 

 correction meosurements 



Photomultiplier tube 



Fig. 1. Arrangement of apparatus for measuring scattered light as a function of 



wavelength. 



I 



5 - 





.m - 



LlI 



< 

 o 



-5 



.to 



3 -, cc 

 t-i- 



^\< 



CD ^ 



CD 



< 



360 400 



450 



650 



700 



- I 



750 



500 550 600 



WAVE LENGTH (m>i) 



Fig. 2. Scattering and absorption of the green alga Chlorella. The intensity of 

 light scattered at 90° to the incident beam is shown as a function of wavelength. 

 Absorption was determined with an integrating sphere. The absorption maxima of 

 the several pigments are indicated on the wavelength scale. The bleached cells 

 were obtained by extraction with hot methanol. 



