ARTHUR SCOTT DONKIN, M.D. EDIN. M.D. DURH.

LECTURER IN MEDICAL JURISPRUDENCE AND TOXICOLOGY IN THE UNIVERSITY

OF DURHAM, LATE PHYSICIAN TO THE SUNDERLAND

INFIRMARY AND DISPENSARY, ETC.

‘Nam ne agricolam quidem aut gubernatorem disputatione,
sed usu fieri.'

CELSUS, Medicinæ lib. I. Præf.

4293 769 1871

ΤΟ

ROBERT CHRISTISON,

M.D. D.C.L. OXON., PROFESSOR OF MATERIA MEDICA IN THE UNIVERSITY
OF EDINBURGH, AND ORDINARY PHYSICIAN TO THE QUEEN

FOR SCOTLAND, ETC. ETC.

MY DEAR PROFESSOR CHRISTISON,

To you I am indebted for my first lessons in the science of Therapeutics, and the art of prescribing; therefore, in grateful acknowledgment of the lasting impression exercised on my mind by your teaching, and of many acts of kindness and courtesy, I venture to dedicate this volume to you, who, by a long and eminently successful career as a teacher, and scrupulous exactity as an author, have done more than any living Physician to improve and advance this most essential branch of medical knowledge; and, by painstaking and accurate observation and the advocacy of simplicity, to prune down the cumberous and often worse than useless exuberance which in times past deformed the Materia Medica. Accept, therefore, this simple ex