I gratefully acknowledge the valuable comments of the following in connection withdefined terms: Franz Alexander, M.D., Professor Leonard Bloomfield, Douglas Gordon Campbell, M.D., Professor Morris R. Cohen, C. B. Congdon, M.D., Professor S. I. Hayakawa, Professor Earnest A. Hooton, Doctor Robert M. Hutchins, N. E. Ischlond-sky, M.D., Professor Wendell Johnson, Professor Kurt Lewin, Professors H. G. and L. R. Lieber, Mr. Robert Lord, Jules H. Masser-man, M.D., Mr. H. L. Mencken, Professor Charles W. Morris, the late Professor Raymond Pearl, Professor W. V. Quine, Professor Oliver Reiser, Professor Bertrand Russell, Doctor Eugene Randolph Smith, Mr. A. Ranger Tyler, and many students and friends too numerous to list here.
I wish to express my warm appreciation to my students and secretaries, Miss Charlotte Schuchardt and Miss Pearl Johnecheck, for the constructive help they have given me in the preparation of this introduction. The drawings on pages xiv and xxviii were made by Miss Johnecheck. I am also genuinely indebted to Miss M. Kendig, Educational Director of the Institute, and to Doctor Irving J. Lee of Northwestern University, for their important criticism and co-operation.
On behalf of students of general semantics who have attended seminars at the Institute, and on my own behalf, I want to express my deep gratitude to Cornelius Crane, whose vision, interest, and financing made possible the founding of the Institute in 1938. The widespread influence and rapid development of the work of the Institute in this world turmoil became a living reality because of Mr. Crane's generous contributions during the first two and a half years of our pioneer effort. Forces of destruction are working steadily, and Mr. Crane should be credited with helping to organize constructive efforts.
I also gratefully acknowledge the contributions of the other students who are now helping to support the work of the Institute.