ACKNOWLEDGMENT
Acknowledgment is made to Otis F. Wood, New York City, for assistance in the preparation of this book.
The moving pictures reproduced in this book to illustrate the various dances were taken under the personal direction of Watterson R. Rothacker, General Manager, the Industrial Moving Picture Company, Chicago, Illinois.
The frontispiece and the illustrations on pages 30, 36, 122, 145, 151, 157, and 161 are from copyrighted photographs by the Moffett Studio, Chicago, and are reproduced here by special permission.
The illustrations on pages 53, 95, 103, 105, and 117 are from copyrighted photographs by Gustave Dietz, New York City, and are reproduced here by special permission.
The illustrations on pages 42, 48, 60, 62, 67, 70, 73, 82, 90, 97, 98, 106, 113, 115, 118, 121, 131, 132, and 138 were specially posed for this book by Ira L. Hill's Studio, New York City.
