THERE are so many who have helped me with this book
that I cannot begin to thank them one by one. If I name
any, however, there are four I would name together.
There is my old friend, long since dead, pe,
of County Wexford, who first told me Irish folk-stories,
adding to the wonderment of my boyhood with his tales
of Finn McCool, Dean Swift, and "The Red-haired Man."
There is Dr. Robert Ellis Thompson, of Philadelphia,
who quickened, by his enthusiasm, over "twenty golden
years ago," my interest in all things Irish. There is Dr.
Clarence Griffin Child, my colleague, who recognized the
power of these men I write of in "Irish Plays and Play-
wrights" when there were fewer to recognize their powerv
than there are to-day. There is Mr. John Quinn, of New
York, without whose aid ten years ago the current Irish
dramatic movement would not have progressed as it has.
He has lent for reproduction here the sketches by Mr.
J. B. Yeats of Synge, Mr. George Moore, and Mr. Padraic
Colum. All but all of the writers I mention particularly
in these chapters have put me under obligation by cheerful
response to many letters full of questions as to their work.
Mr. James H. Cousins and Mr. S. Lennox Robinson have
taken especial trouble in my behalf, and Lady Gregory,
Mr. W. B. Yeats, and Mr. George W. Russell have put
themselves out in many ways that I might learn of Irish
Letters.

UNIVERSITY OF PENNSYLVANIA, December 28, 1912.