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The result is that there are many veterinarians who will not attempt to cope with the disease, or who, making the attempt, feel the need for guidance.
This volume is in no sense a compilation. For the most part it reflects personal experiences gained during ten years of intimate contact with hoy cholera in the capacity of practicing and consulting veterinarian, antihog-cholera serum producer and research worker, but acknowledgment is due many other members of the veterinary profession whose researches and observations have revealed many of the foundation facts on which the subject matter rests. For statistical and other data I have consulted other authors freely, relying for statistics especially on the numerous and excellent publications of the United States Bureau of Animal Industry. I am indebted to Dr. E. A. Cahill, Director of the Pitman-Moore Biological Laboratories, Zionsville, Indiana, for some of the illustrations.
Dr. V. A. Moore, Dean of the New York State Veterinary College at Cornell University, and Dr. J. W. Benner of the College Experiment Station Staff have read the manuscript, and each has offered many valuable suggestions which are deeply appreciated.
Great care has been taken to make the book a conservative and accurate guide for the practicing veterinarian who must accept farm conditions as he finds them and handle hog cholera so as to secure and retain the confidence of his clients. If among other imperfections there are departures from this ideal I trust that my readers will direct my attention to them.
R. R. B.
1. Shoats affected with acute hog cholera .
3. Left auricle of pig's heart showing petechiæ due to
acute hog cholera .
4. Spleens showing hemorrhages which are rather typ
ical of acute hog cholera .
5. Kidney of pig showing numerous petechiæ due to
acute hog cholera . 6. Lymph glands of pig showing hemorrhages caused
by acute hog cholera . 7. Bleeding room in anti-hog-cholera serum laboratory.
(Courtesy Pitman-Moore Biological Laboratories) 8. Corner of anti-hog-cholera serum laboratory. New
York State Veterinary College at Cornell Uni
versity. 9. Post-mortem room where autopsies on virus pigs
10. A close view showing the hypering process