186 



PHYSIOLOGICAL CHEMISTRY. 



FIG. 50. 



OXYH^EMOGLOBIN CRYSTALS FROM BLOOD OF THE GUINEA PlG. 



Reproduced from a micro-photograph furnished by Prof. E. T. Reichert, of the 

 University of Pennsylvania. 



FIG. 51. 





OXYH^EMOGLOBIN CRYSTALS FROM BLOOD OF THE RAT. 



Reproduced from a micro-photograph furnished by Prof. E. T. Reichert, of the 

 University of Pennsylvania. 



