Our thanks are due and are hereby tendered to Dr. Mary Merrit
Crawford of Brooklyn, N. Y., for her letters regarding the Paris
hospital patients, to the New York Times for the article, "Three
Months in the Trenches," by Bert Hall, and for other letters; and
to the New York Sun and various other publications for the numerous
items of intense human interest which help to make this collection
an accurate record of conditions at the front in the colossal
European War.