PREFACE 



THIS work is the result of several years experience in 

 teaching the subjects of bacteriology and pathology to 

 nurses. It was early discovered that there did not exist 

 any work on these subjects which seemed adapted to the 

 peculiar requirements of the busy nurse in training or in 

 practice. The fact that such a work must of necessity be 

 brief has been recognized, but a constant effort has been 

 maintained to avoid sacrificing accuracy or lucidity for 

 brevity. Considerable space has been devoted to the 

 subjects of infection and immunity and to bacterial and 

 serum therapy, because it was realized that the trained 

 nurse, because of her intimate and continued association 

 with them, is to become the great teacher of the masses 

 in the newer developments in medicine and sanitation, as 

 the physician can never be, and she should, therefore, 

 keep abreast of the times on these subjects. 



The subjects of microscopic diagnosis and pathologic 

 technic have not been entered into to any extent, as they 

 are of interest only to those nurses who contemplate be- 



