If all the certificated teachers employed wholly in the education of children under the age of six were replaced by non-certificated teachers, the annual saving in salaries would be approximately £370,000; but unless the certificated teachers were dismissed, the net saving would, of course, be very much less, or might be entirely eliminated, if by rearrangement of staffs the displaced certificated teachers were employed to replace non-certificated teachers now engaged in teaching older children.