78 COMPARATIVE PHYSIOLOGY 



and about twice or three times the oxygen capacity of the blood 





5iO 



I 



I 



5(8 



I 



I 



57B 



576 



SifO 



Fig. 19. — Absorption spectra. I: oxychlorocruorin in three concentrations ; 

 II and III give the spectrophotometric axes of the bands of the haemoglobin 

 of the horse (II) and Arenicola (III) (after Fox). 



(,10 



—\ — 



5S0 



IV 



Fig. 20. — Absorption spectra. I : chlorocruorin reduced by Na2CO + 

 Na2S204 ; 1 1 chlorocruorin reduced by AniaS ; III arenicolan haemoglobin 

 reduced by NagCOs + NaoSaOi ; IV arenicolan haemoglobin reduced by 

 Am.S : V mammalian haemoglobin (after Fox). 



in Crustacea and other molluscs. It is almost equal to the 



