aB C D E b 



11 



j5 so 



E"b 



FIG. 180. Absorption-spectra. 



1, Oxyhsemoglobin (very weak solution) ; 2, Oxyhaemoglobin (weak solution) ; 3, Oxyhaemo- 

 globin (strong solution) ; 4, Haemoglobin (reduced haemoglobin) ; 5, Carbon-monoxide haemoglobin ; 

 6, Acid hsematin ; 7, Acid haematin (ethereal extract) ; 8, Alkaline haematin ; 9, Hsemochromogen 

 (reduced hsematin) ; 10, Hsematoporphyrin (acid solution) ; 11, Haematoporphyrin (alkaline 

 solution). 



