198 



PHYSIOLOGICAL CHEMISTRY 



FIG. 58. 



C i 



CRYSTALS FROM HUMAN BLOOD. 



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

 University of Pennsylvania. 



FIG. 59. 



\ 



CRYSTALS FROM SHEEP BLOOD. 



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

 University of Pennsylvania. 



