Attention Vicki McConnell: The ONLY reference book I know of is BIOLOGY AND DISEASES OF THE FERRET by James G. Fox, DVM (he is at MIT) published by Lea & Febiger, 600 Washington Square, Philadelphia, PA 19106-4198 Phone- 215-922-1330 (around $50 and not for the weak of stomach or those without a medical dictionary)- should be in your library at school!! if not scream at librarian!!!! -this is THE standard refference. Ann Davis [There is a several page section in one of the Veterinarian journals (jAVM?), oh, about 7-8 years ago which is pretty good on the basics, but scanty on the more modern info on things like Cushings or Aleutian disease.] [Posted in FML issue 0444]