PREFACE. Vll 



complete way than is usual in manuals of this character. Therefore it 

 is believed that this little book will be of great service to the laboratory 

 worker in the tropics. 



It is only from working under Doctor Charles W. Stiles in his course 

 of laboratory instruction in Animal Parasitology in the United States 

 Xaval Medical School, that I feel justified in presenting a concise out- 

 line of the subjects in medical zoology which appear to me to be most 

 important for the physician. 



The system of arranging tables, showing the families, genera, etc., 

 in which each species belongs will, it is believed, greatly simplify the 

 matter of classification for the medical student. The points given 

 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 im- 

 mediately 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 para- 

 sites 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 : 



Allbutt'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; 



