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for this volume, and of the sound advice which it has given with regard to the extent to which the effectiveness of the book may be increased by the introduction of pictorial illustrations.
To my friend, Lawrence F. Abbott, of New York, I am deeply indebted for the valuable assistance which he has rendered me throughout the entire progress of this work. Indeed, without this assistance, I doubt whether I should have had the courage to remain at my post to the very end.
Albert H. Buck.
Cornwall, N. Y., December 29, 1916.
