ACKNOWLEDGMENTS
Reading edition
The thanks of the publishers and author are due a great many individuals and publications for aid in securing photographs and data used in the preparation of this volume.
Although space prevents giving the names of all, opportunity is here taken to express to each the heartiest appreciation of their generous help and valuable suggestions.
More than to all of these are my thanks due my wife, Edna O'Dell Maule, for her constant aid and coöperation.