IT PREFACE. 



Each parasite is dealt with in the order of the 

 tabulation. 



The facts about each are noted under the headings : 

 Synonym, Distribution, Life Cycle, Animals In- 

 fested, Parts Infested, Conditions Produced and 

 Treatment. (The latter when treatment is of any 

 avail.) 



The photomicrographs are made by myself with 

 an ordinary kodak placed over the occular lense of 

 the microscope and given time exposure. By gas- 

 light the exposure was from three to five minutes. 



As there have been no attempts made to cite any 

 authorities in the text, the writer herewith expresses 

 his obligations to the writings of Professors Law, 

 Neumann, Hutyra and Marek, Friedberger and 

 Froehner, etc., etc., also to the reports from the U. 

 S. Bureau of Animal Industry, Report by Loos on 

 Strongiles, published by the Cairo Medical School, 

 Extracts from the Experiment Station Record, Amer- 

 ican Veterinary Review, Journal of Comparative 

 Pathology, etc., etc. 



The Author. 



Spartanburg, S. C, 1914 



