﻿SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 59, NO. 8, PL. 2 





1. MENINGOCOCCUS 



SEE EXPLANATION OF PLATE 







t' ''"■ ^ ' SB*:,., 











* 











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2. SPIROCHETA OF AFRICAN TICK FEVER, IN BLOOD OF 

 INFECTED MOUSE 



