INDEX-CATALOGUE OE MEDICAL AND VETERINARY 
ZOOLOGY. 
SUBJECTS: TREMATODA AND TREMATODE DISEASES. 
By Ch. XVardell 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. XXC Graybill, 
M. G. Hotter, C. Myers, B. and E. Oberly, C. A. Pfender, B. H. Ramson, E, and A. 
Stevenson, D. G. Willets. 
: IXTRODUCTIOX. 
I 
I The Index-Catalogue of Medical and Veterinary Zoologx^ represents 
the combined card-catalogues of the Zoological Division of the United 
I States Bureau of Animal Industrx^ and of the Zoological Division, 
1 Hx'gienic Laboratorx^, United States Public Health and Marine-Hos- 
I pital Service. These catalogues are arranged in three sections: 
Authors, Subjects, and Hosts. 
j Object of index catalogue. — The object in publishing the cata- 
i logue is to place it in permanent form. There liave been four fires 
1 in the two laboratory buildings, but fortunately none of these gained 
headwaxL Were either building to be destroyed, and any part of the 
, catalogue to be lost, the inconvenience such loss would entail m the 
regular work would be very extensive. Bx" having the catalogue in 
I 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 
I render their work less arduous, and especially it is desired to reduce 
! the confusion in nomenclature. 
j Suggestions for using the index. — It should be recalled that 
j this is an index, not a treatise. Persons who consult it should there- 
fore not expect to find in it the reasons for any gUen entry. Nor 
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