PROFESSOR OF GENITO-URINARY SURGERY, SYPHILOLOGY, AND DERMATOLOGY, IN BELLEVUE HOS-
PITAL MEDICAL COLLEGE; CONSULTING SURGEON TO THE CHARITY, THE BELLEVUE,

AND THE SKIN AND CANCER HOSPITALS; CONSULTING SURGEON TO THE
BUREAU OF OUT-DOOR RELIEF, BELLEVUE HOSPITAL;

SURGEON TO ST. ELIZABETH HOSPITAL, ETC.

A REVISION OF VAN BUREN AND KEYES'S TEXT-BOOK
UPON THE SAME SUBJECTS

NEW YORK

D. APPLETON AND COMPANY

1888

PREFACE.

TIME and surgical advance have destroyed in great part the value of the original treatise upon which this revision is founded, making it an unsafe guide as a text-book upon certain subjects. The original book for which my dear old master and myself were mutually responsible was issued in 1874, and since that date until the present time has received no material alteration. The whole subject of litholapaxy has had its birth since that date; suprapubic cystotomy has been restored to a new life; the surgery of the kidney has been constructed anew, and radical changes have been introduced into the surgery of the tunica vaginalis and that relating to the treatment of varicocele. Many minor advances have been made by the profession all along the line followed in this treatise.

To bring the book up to date, therefore, it became necessary to recast it entirely, and the publishers have found it expedient to. destroy the old stereotyped plates and to set up the entire book anew in type. There are comparatively few pages in which interpolations of more or less importance have not been made.

All the cases have been left out, to give place for new matter, and several of the chapters (on stone) have been dropped entirely, being replaced by others.

In this way it has been possible to add considerable new material without materially adding to the number of pages. The plan of the original book has been scrupulously adhered to, and its scope remains unaltered.

I have missed the kindly counsel and the mature judgment of my friend and teacher, without which the original of this work would not have been written. His absence from this revision is to be deplored; but I feel justified in making the revision because there appears to be a demand for it, and because all the text of the