vi PREFACE rO SECOND EDITION
In revising his book for a second edition the author cannot tail to acknowledge his indebtedness to The Laryngoscope and to its editor, Dr. Max A. Goldstein, for publishing the text of the first edition in their columns. Through an oversight this was not explicitly stated when it was first published in book form. As it was not a part of the author's ambition in preparing the first draft of the work that it should eventually appear in })ermanent form, and inasmuch as the text was furnished from the columns of that journal without emendation, naturally that care was not given to various matters in its preparation which is essential to its existence as a book.
There is in press at this time a valuable and exhaustive history of laryngology in Germany. Its author, Dr. Karl Ivassel, of Posen, has with the greatest courtesy furnished advance proof-sheets, which show that it enters more into detail than this work, but differs somewhat from it as to references to contemporaneous events in the general history of civilization.
The author desires to acknowledge his indebtedness to Semon's Centralblatt fur Laryngologie und Rhinologie. Without it the task of collecting such data as have been added would have been too great. He desires also to acknowledge a personal debt of long standing to Sir Felix Semon, who urged him years ago to undertake the present task and whose appreciative words in regard to the first edition are still gratefully remembered.
The author desires to express his appreciation of the work of Mr. Frank Place, of the librarv staff of the New York Academ' of Medicine, who has undertaken to confirm and revise the references.
J. W.
New York City, 1914.
