590 ABSTRACTS 



cardium. The authors are unable to decide definitely whether or not 

 the gastric lesions produced by the injection of the rabbits with strep- 

 tococci are to be considered ulcers. From their experiments they con- 

 clude "It must be assumed that some cause is operative in certain 

 cases preventing the healing of defects in the gastric mucosa and is 

 inoperative in others. Even though anhemolytic streptococci are 

 present in practically all gastric ulcers, we cannot convince ourselves 

 that these organisms have been proven as yet to be the factor which 

 either initiates the ulceration or prevents healing. Nevertheless, the 

 constant presence of streptococci in this type of lesion is a suggestive 

 fact and further experiments to determine their significance are being 

 undertaken." — B. W. 



