PREFACE TO THE FIRST EDITION xiii 



under each parasite are believed to be practical ones. When a parasite 

 has only been reported for man two or three times, very little space is 

 given to it. 



Part IV summarizes the various infections which may be found in 

 different organs or excretions of the body and embraces both bacterial 

 and animal parasites. Practical methods for examining material are 

 also given. 



The chapter on Immunity, in which the theoretical side is immedi- 

 ately illustrated by the practical application will tend to simplify this 

 bug-bear of the medical student. 



The illustrations have been selected with a view to bringing out 

 points which are difficult to state briefly in the text, and furthermore 

 they have been grouped together so that comparison of similar parasites 

 is possible without turning from page to page. 



I have in particular to thank Hospital Steward Ebeling of the Navy 

 for his care in bringing out such details. 



By reason of the authority of Braun, it has been considered sufficient 

 to give in the tables only the proper zoological name of the parasite as 

 given in the 1908 German edition. The synonyms have been omitted 

 for consideration of space. 



The works chiefly consulted in addition to that of Braun have been : 

 Albutt's System of Medicine; Osier's System of Medicine; Muir and 

 Ritchie's Bacteriology; Mense's Tropenkrankheiten; Blanchard's Les 

 Moustiques; Guiart and Grimbert's Diagnostic; Ehrlich's Studies in 

 Immunity; Stephens and Christopher's Practical Study of Malaria; 

 Daniel's Laboratory Studies in Tropical Medicine; Manson's Tropical 

 Diseases; Gedoelst's Les Champignons Parasites; Neveu-Lemaire 

 Parasitologie Humaine; Chester's Determinative Bacteriology; Leh- 

 mann and Neumann's Bacteriology. 



E. R. S. 



