To

MY DEVOTED WIFE

Whose zeal for my success is the light which guides me along the highway of my labours, and to those earnest friends, Mr. Walter S. Logan, Judge Charles P. Daly, Mr. James Muhlenberg Bailey, Mr. Samuel S. McClure, Hon. O. B. Potter, Dr. Alexander Melville Bell, Hon. John Hay, Professor S. E. Tillman, Mrs. Henry Draper, Mr. J. V. V. Booream, Mr. G. Hilton Scribner, and Mr. B. Schlesinger, who have opened their purse as they opened their hearts, and afforded me that aid which made it possible for me to continue my researches. With them I shall gladly share the glory of all that my efforts may achieve, and to them, with profound and affectionate gratitude, this first contribution to Science on this subject is justly dedicated by

THE AUTHOR.


PREFACE

I desire here to express my gratitude to The New Review, The North American Review, The Cosmopolitan, The Forum, and many of the leading journals of America, for the use of their valuable and popular pages through which my work has been given to the public. To the press, English and American, I gladly pay my tribute of thanks for the liberal discussion, candid criticism, and kind consideration which they have bestowed upon my efforts to solve the great problem of speech.

In contributing to Science this mite, I do not mean to intimate that my task has been completed, for I am aware that I have only begun to explore the field through which we may hope to pass beyond the confines of our own realm and invade the lower spheres of life.