Text-book of diseases of the skin

Front matter

Class ZSJuiU

Book_^_- GopyrightN

COPYRIGHT DEPOSIT.

Preface To The Fourth Edition

The present differs from previous editions of this work in the arrangement of the description of the various diseases. These, instead of being entered alphabetically, as before, are nowarranged according to the classification generally adopted by American teachers. It is hoped that this will make the book more useful to the student.

The text has been almost entirely rewritten to bring it up to the present state of our knowledge; a large number of diseases are described which have not previously been included and a brief account of the pathologic anatomy of the various affections has been inserted.

A considerable number of new illustrations have been added. Some of these are from drawings by the author, others are from photographs of cases occurring under his own observation and that of friends.

His best thanks are due to Prof. Louis A. Duhring and Prof. Henry W. Stelwagon for advice and assistance in the preparation of the present edition. To Dr. Duhring for the use of several photographs of disease and also of certain drawings of the anatomy of the hair and of parasites made by the author for Duhring's "Treatise on Diseases of the Skin" some years since and published in that work.

Dr. Stelwagon has kindly allowed the author to make use of his "Treatise on Diseases of the Skin" and this has been freely drawn upon in the description of some of the rarer diseases

VI PREFACE.

and in the sections on pathologic anatomy. The same friend has lent several photographs for use in this edition.

The scope of this work has not permitted extensive reference to original articles but this has been done to a much greater extent than in previous editions. The author may also here express his indebtedness to the text-book of Hyde and Montgomery, and Duhring's "Cutaneous Medicine" and, particularly in the anatomical sections, to the admirable "Handbook of the Pathology of the Skin" by Macleod, of London.

Contents

PAGE

Anatomy and Physiology of the Skin i

Symptomatology 22