We believe that this sulfamide should be tested more extensively in clinical trials under field conditions, especially in porcine enteritis and bovine metritis. References: 1. NEIPP, L., and MAYER, R. L. Experimental activities of new sulfonamides. Ann. N.Y. Acad. Sc. 69: 448. Oct. 12, 1957. 2. JONES, W. F. JR., ZIAL, M., CHERRICK, G. R., and FINLAND, M. Absorption and excretion of sulfachloropyridazine. Proc. Soc. Exp. Biol. and Med. 95: 642. 1957. 3. JONES, W. F. Jr., and FINLAND, M. Sulfamethoxypyridazine and sulfachloropyridazine. Ann. N.Y. Acad. Sci. 69: 473. Oct. 12, 1957. 4. RENTCHNICK, P. Nouveaux sulfamides et sulfamides-retard (New sulfonamides and long-acting sulfonamides). Schweiz. Med. Wschr. 88: 362. April 12, 1958. Clinical Biochemistry of Domestic Animals by Charles E. Cornelius and Jiro J. Kaneko is a comprehensive book that covers the metabolism of carbohydrates, lipids, proteins, porphyrins and bile pigments; the function of the liver, kidneys, thyroid, pancreas and adrenals; discussions of cerebral spinal fluid, synovial fluid, transudates and exudates; mineral metabolism; fluid and electrolyte therapy, and the use of radioactive isotopes. The text is well illustrated with photographs and diagrams, and the references at the end of each chapter are profuse and up-to-date. The authors have attempted to emphasize the biochemical aspects of many clinical conditions, which should greatly enhance the interest of this subject for the veterinary student. The practitioner will find much useful information on the value and interpretation of many biochemical tests along with background information to many of the more common clinical conditions such as ketosis, parturient paresis, diabetes and rickets. Many of the less common conditions such as fluorosis in cattle, obesity in the dog and osteoarthropathy are not mentioned. As this is an American text, the licensing regulations pertaining to the use of radioactive isotopes refer to those outlined in the United States. This book is a most welcome one and should be of benefit to the student, practitioner, and research worker. R. M. Liptrap. Errata: Due to reduction of original photographs the magnification factors should read as follows: Pg. 293, FigureWe believe that this sulfamide should be tested more extensively in clinical trials under field conditions, especially in porcine enteritis and bovine metritis. References: 1. NEIPP, L., and MAYER, R. L. Experimental activities of new sulfonamides. Ann. N.Y. Acad. Sc. 69: 448. Oct. 12, 1957. 2. JONES, W. F. JR., ZIAL, M., CHERRICK, G. R., and FINLAND, M. Absorption and excretion of sulfachloropyridazine. Proc. Soc. Exp. Biol. and Med. 95: 642. 1957. 3. JONES, W. F. Jr., and FINLAND, M. Sulfamethoxypyridazine and sulfachloropyridazine. Ann. N.Y. Acad. Sci. 69: 473. Oct. 12, 1957. 4. RENTCHNICK, P. Nouveaux sulfamides et sulfamides-retard (New sulfonamides and long-acting sulfonamides). Schweiz. Med. Wschr. 88: 362. April 12, 1958. Clinical Biochemistry of Domestic Animals by Charles E. Cornelius and Jiro J. Kaneko is a comprehensive book that covers the metabolism of carbohydrates, lipids, proteins, porphyrins and bile pigments; the function of the liver, kidneys, thyroid, pancreas and adrenals; discussions of cerebral spinal fluid, synovial fluid, transudates and exudates; mineral metabolism; fluid and electrolyte therapy, and the use of radioactive isotopes. The text is well illustrated with photographs and diagrams, and the references at the end of each chapter are profuse and up-to-date. The authors have attempted to emphasize the biochemical aspects of many clinical conditions, which should greatly enhance the interest of this subject for the veterinary student. The practitioner will find much useful information on the value and interpretation of many biochemical tests along with background information to many of the more common clinical conditions such as ketosis, parturient paresis, diabetes and rickets. Many of the less common conditions such as fluorosis in cattle, obesity in the dog and osteoarthropathy are not mentioned. As this is an American text, the licensing regulations pertaining to the use of radioactive isotopes refer to those outlined in the United States. This book is a most welcome one and should be of benefit to the student, practitioner, and research worker. R. M. Liptrap. Errata: Due to reduction of original photographs the magnification factors should read as follows: Pg. 293, Figure