This is a rare and comprehensive two-volume set of "Friedberger and Frohner's Veterinary Pathology," 6th Edition, published in 1909 by Chicago Medical Book Co. This authorised English translation by M. H. Hayes, F.R.C.V.S., includes additional notes on bacteriology by Professor R. Tanner Hewlett. The set is a valuable resource for collectors and professionals interested in the history of veterinary medicine and pathology. Both volumes are bound in original red cloth with gilt lettering on the spine, showing age-appropriate wear, rubbing, and some light soiling. The pages are generally clean with some toning consistent with age. A significant addition to any antiquarian science or veterinary collection.