le Contents of this Pamphlet are based on an 

 ?le read before the St. Louis Medical Society in 

 ber, 1891. At the request of friends and per- 

 interested in the subject the author has agi 

 large and modify the article, and to publis 

 ? present form. 



L. Bremer, M. D 

 Louis, December 22, 1891. 



ONES PRINTING CO.. 2< I PINE ST., ST. LOUIS. 



