I HAVE been asked to write an Introduction to the English edition of the work by Dr. A. Carrel and Dr. G. Dehelly, and I am glad to take the opportunity of expressing the appreciation of British surgeons at the Front of the value of what is known to us as "Carrel's Method."

Whenever it has been thoroughly carried out it has accomplished all that is claimed for it by its author, and it has been of inestimable benefit to thousands of patients. It has also renewed faith in antiseptic methods, in spite of the attacks on their utility which characterised the early stages of the war, and has done the greatest good by setting a high standard of thorough excision and surgical cleanliness. The whole practice of war surgery has been greatly improved by Dr. Carrel's confidence that antiseptic treatment can sterilise a septic wound, and that it does do so if sufficient care and skill are bestowed upon it; and the lesson he has taught was very necessary.

The book itself will be found to convey in the clearest manner the knowledge of those details which have been so carefully elaborated by the patient work of two years' experience, but it is only by scrupulous attention to every detail that the best results will be obtained.

I would also suggest that, if "Carrel's Method" is to be fairly judged, no change whatever should be made either in the Dakin's solution itself, or in the use of the tubes for instilling it. The tendency has often been so to modify these details, in the belief that they were thereby "improved," that the author himself would be the first to disclaim the improved methods which are yet called by his name. The only modification that seems justifiable is the use of the syringe when instillation by gravitation cannot be carried out, as in trains, ships, and many units at the Front. It will be time enough to introduce other modifications after a prolonged trial of the methods advised in this publication.

The utility of Carrel's method is not confined to recent wounds, and, in the following pages, those surgeons who are treating the wounded in Great Britain will find all the necessary information for the treatment of both healthy and suppurating wounds.

The Army Medical Department has already arranged that, in those cases where it is employed, this treatment can be continuously carried out not only in the Front and Base Hospitals, but also in Ambulance Trains, Hospital Ships, and Hospitals in Great Britain.

To the workers in each of these areas of surgery this book will prove of the utmost practical value, and I feel certain it will be of the greatest value of ail to the patients themselves.

ANTHONY A. BOWLBY. General Headquarters, B.E.F., France, February, 1918.