BACILLUS TETANL 353 



pathology of the disease was further elucidated by Brieger 

 and Fraenkel, and still more satisfactorily by Faber, who, 

 having isolated bacterium-free poisons from cultures, repro- 

 duced the symptoms of the disease. 



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FIG. 87. Film preparation of discharge from wound in a case of 

 tetanus, showing several tetanus bacilli of "drumstick" form. (The 

 thicker bacillus with oval and not quite terminal spore, in the upper part 

 of the field towards the right side, is not a tetanus bacillus but a putre- 

 factive anaerobe which was obtained in pure culture from the wound. ) 



Stained with gentian-violet. x 1000. 



Bacillus Tetani. If in a case of tetanus naturally aris- 

 ing in man, there be a definite wound with pus formation 

 or necrotic change, the bacillus tetani may be recognised 

 in film preparations from the pus, if the characteristic 

 spore formation has occurred. If, however, the tetanus 

 bacilli have not formed spores, they appear as somewhat 



2 3 



