MOTHERS of several children must often have felt that, however important labour-saving might be in the factory, it was just as essential in the home. Mrs. St. Aubyn is herself the mother of five children, so her knowledge of her subject is by no means confined to theory. She founded the Association of Nursery Training Colleges, and she is a member of the Executive Council of the National Society of Day Nurseries and the author of a handbook on' Nursery Life.'