parts, and on special periods, to the writings of Hodgkin, Emerton, Ranke,
Freeman, Michaud, Bryce, Symonds, Green (J. R.), Motley, Hallam, Thiers,
Lecky, Baird, and Mueller.

Several of the colored maps, with which the book will be found liberally
provided, were engraved especially for my _Ancient History_; but the
larger number are authorized reproductions of charts accompanying
Professor Freeman's _Historical Geography of Europe_. The Roman maps were
prepared for Professor William F. Allen's _History of Rome_, which is to
be issued soon, and it is to his courtesy that I am indebted for their
use.

The illustrations have been carefully selected with reference to their
authenticity and historical truthfulness. Many of those in the Oriental
and Greek part of the work are taken from Oscar Jaeger's _Weltgeschichte_;
while most of those in the Roman portion are from Professor Allen's
forthcoming work on Rome, to which I have just referred, the author having
most generously granted me the privilege of using them in my work,
notwithstanding it is to appear in advance of his.

Further acknowledgments of indebtedness are also due from me to many
friends who have aided me with their scholarly suggestions and criticism.
My warmest thanks are particularly due to Professor W.F. Allen, of the
University of Wisconsin; to Dr. E.W. Coy, Principal of Hughes High School,
Cincinnati; to Professor William A. Merrill, of Miami University; and to
Mr. D. H. Montgomery, author of _The Leading Facts of History_ series.

P. V. N. M.
COLLEGE HILL, OHIO,
July, 1889.