PLATE VI 
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Fig. 2 
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Survival and Virulence of Poliomyelitic Microorganism. 
(Flexner, Noguchi and Amoss.) 
Fiti. 
fissure 
1. -Sediment showing the minute microorganisms after three days' growtli in niixe( 
fluid and bouillon in a flask employed for mass cultivation. Giemsa slain. X 1000. 
2. — Spinal cord showing meningeal cellular infiltration extending into (he anterior medial 
X 1000. 
