CONTENTS. 
Pa,5a 
Introduction 7 
Post-diphtheritic paralysis in man 11 
The relation of post-diphtheritic paralysis to antitoxin 12 
Post-diphtheritic paralysis in the guinea pig 14 
Can antitoxin influence diphtheritic paralysis after the paralysis has 
appeared? 16 
Can antitoxin influence diphtheritic paralysis when injected shortly before 
the paralysis develops? 20 
How long after infection can antitoxin influence paralysis? 20 
Can antitoxin, given before infection as a prophylactic, prevent post-diphthe- 
ritic paralysis? 30 
Summary and conclusions 31 
( 5 ) 
