254 



PHYSIOLOGICAL CHEMISTRY 



5fcl . ^r\A- -+i 



B* 4 * ^f^ " 



V5S5* 1 



FlG, 76. OXYHEMOGLOBIN CRYSTALS FROM^BLOOD OF THE GUINEA-PIG. 



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



of Pennsylvania. 



FIG. 77. OXYHEMOGLOBIN CRYSTALS FROM BLOOD OF THE RAT. 



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



of Pennsylvania. 



