Abstract
1 In the case of five of the eight systems described, the originator of the system or an authority on it has been consulted. The author acknowledges help from the following: Mr. and Mrs. W. G. Bass, Miss Dwyer (of the Montessori Association), Mr. B. R. Jones, Dr. M. Lowenfeld, Dr. Z. Lubienski (Lowenfeld system), and Mr. H. Shaw.
Notes
1 In the case of five of the eight systems described, the originator of the system or an authority on it has been consulted. The author acknowledges help from the following: Mr. and Mrs. W. G. Bass, Miss Dwyer (of the Montessori Association), Mr. B. R. Jones, Dr. M. Lowenfeld, Dr. Z. Lubienski (Lowenfeld system), and Mr. H. Shaw.