NAMES OF THOSE WHO HAVE CONTRIBUTED TO, OR ASSISTED IN THE REVISION OF, THIS EDITION

John Attfield, Ph.D., F.I.C., F.C.S., Professor of Practical Chemistry to the Pharmaceutical Society of Great Britain. J. Wortley Axe, P.C.V.M.S., Professor of Histology in the Royal Veterinary College. Lloyd Bullock, F.I.C., F.C.S. E. L. Barret, B.Sc., F.I.C., F.C.S. E. Canton, F.R.C.S., Surgeon to Charing Cross Hospital. Spencer Cobbold, M.D., F.R.S., Professor of Parasitology and Botany in the Royal Veterinary College. Stephen Darby, F.C.S. Dr De Vrij, of the Hague. John Gardner, F.I.C., F.C.S. William Harkness, F.I.C., F.C.S., F.R.M.S., Assistant Chemist in the Laboratory of the Inland Revenue Department, Somerset House. C. W. Heaton, F.I.C., F.C.S., Lecturer on Chemistry at the Charing Cross Hospital. Edmund Neison, F.I.C., F.C.S. William Pritchard, Professor of Anatomy in the Royal Veterinary College. A. E. Sansom, M.D. Lond., M.R.C.P., Physician to the Royal Hospital for Diseases of the Chest. J. B. Simonds, Principal of, and Professor of Pathology in, the Royal Veterinary College. John Spiller, F.I.C., F.C.S. John Stenhouse, LL.D., F.R.S., formerly Lecturer on chemistry in St. Bartholomew’s Hospital.