PLATE 28 



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A. Normal rabbit blood ; 5 minutes at 37° C. 



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B. Normal; 24 hours in normal saline at 37° C. 



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0, Crotalus venom, 0.5 per cent; 6 hours at 37° C. 

 Effect on White and Red Corpuscles of Rabbit. (Drawings by Noguchi.) 



