Biol. Lect., to face page i. 



Fig. I. 





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• ■'->i:'A;v'.::^s?/-,' 



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Experimental Abscess in the Kidney of the Rabbit. 

 Staphylococcus pyogenes aureus infection. 



Fig. II. 











Experimental focal cell necrosis in the liver of the Guinea pig. Ricin intoxication. 



