1. Beacher, L. L.: Your Precious Eyesight, Psychological Library,
New York
,
N. Y.
, 1952, p.
8.
2. A Study of the Relation between Mental and Physical Status of Children in Two Counties of Illinois
3. CAUSAL AND SYNDROMATIC ANALYSIS
4. The reference is from Rempel (6) and is based upon an unpublished dissertation.