The exhaustion of the third edition of this work within so short a time after its publication, and the appearance of this fourth edition, afford gratifying evidence of the value of the work to the profession. This revision is a conscientious one. Old chapters have been rewritten, new ones added, and critical corrections have been made where necessary to bring the work to correspond in all respects to the recent progress in dermatology.
The enormous number of cases annually appearing at Professor Hyde's clinic, makes it possible for him to write from the standpoint of a clinician of unsurpassed opportunities for observation. That he has used his clinical opportunities to the best advantage is apparent from a perusal of the book.