Standard tests, like those mentioned On page x Of the preface of each volume of the Silent Readers, should be given at least at the beginning and the close Of the term, and the results com pared. Quick drill exercises, or speed tests, should be given throughout the term. Classes should be divided into groups according to results of such tests; the high group, the middle group, the low group, and the instruction should be based on group needs. In the middle and low groups, especially, the instruction should be largely individualized.