INDEX-CATALOGUE OF MEDICAL AND VETERINARY 



ZOOLOGY. 



SUBJECTS: TREMATODA AND TREMATODE DISEASES. 



By Ch. Wardell Stiles, Ph. D., 

 Chief of Division of Zoology, Hygienic Laboratory, U. S. Public Health and Marine- 

 Hospital Service, Consulting Zoologist, U. S. Bureau of Animal Industry, 



and 



Albert Hassall, M. R. C. V. S., 



Assistant, Division of Zoology, U. S. Bureau of Animal Industry, 



Collaborators: O. B. Clevenger, P. E. Garrison, J. Goldberger, H. W. Graybill, 

 M. G. Motter, C. Myers, B. and E. Oberly, C. A. Pfender, B. H. Ramson, E. and A. 

 Stevenson, D. G. Willets. 



INTRODUCTION. 



The Index-Catalogue of Medical and Veterinary Zoology represents 

 the combined card-catalogues of the Zoological Division of the United 

 States Bureau of Animal Industry and of the Zoological Division, 

 Hygienic Laboratory, United States Public Health and Marine-Hos- 

 pital Service. These catalogues are arranged in three sections: 

 Authors, Subjects, and Hosts. 



Object of index catalogue. — The object in publishing the cata- 

 logue is to place it in permanent form. There have been four fires 

 in the two laboratory buildings, but fortunately none of these gained 

 headway. Were either building to be destroyed, and any part of the 

 catalogue to be lost, the inconvenience such loss would entail in the 

 regular work would be very extensive. By having the catalogue in 

 printed form, it is made more accessible, and accidents are guarded 

 against. By placing it at the disposal of other workers it is hoped to 

 render their work less arduous, and especially it is desired to reduce 

 the confusion in nomenclature. 



Suggestions for using the index. — It should be recalled that 

 this is an index, not a treatise. Persons who consult it should there- 

 fore not expect to find in it the reasons for any given entry. Nor 



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