JOHN
FRANCIS
41
are being carried out by the German Army veterinary services are of a high standard. It is
pleasing to note [ J.A.V.M.A. 91-254 ] that progress is being made, at the U.S. Army Veterinary
Corps Laboratory, Front Royal, in the study of various respiratory diseases of the horse and
that vaccines against influenza and strangles are being developed.
I am indebted to Dr. J. T. Edwards for assistance in the preparation of this article. I should
also like to thank the staff of the Imperial Bureau of Animal Health and the library at Wey-
bridge for assistance in obtaining references and literature, and Lieutenant-Colonel R. H. Know-
les for permission to use the library at the R.A.V.C. Laboratory.
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