Detailed acknowledgment is made throughout the volume to various authors and publishers. A general assurance of most grateful appreciation is here tendered to many who have responded with material and suggestions in the research, and to the numerous teachers whose resourcefulness has led to the adaptation of many games to school conditions. The author regrets the impracticability of mentioning all of these by name.

Especial acknowledgment is due Mrs. Marie Talbot Constant for most valuable and varied assistance, particularly in bibliographical research and cataloguing of games; and to Miss Lilian M. McConville for testing and adapting many foreign games collected for the present volume.