1. BUNCH, M. E., FRERICHS, J. B., & LICKLIDER, J. R. An experimental study of maze learning ability after varying periods of wakefulness. J. comp. Psychol., 1938, 26, 499–514.
2. DISPENSA, J., & HORNBECK, R. T. Can intelligence be improved by prenatal endocrine therapy? J. Psychol., 1941, 12, 209–224.
3. KENSHALO, D. R. Maternal hypo- and hyperthyroidism in albino rats as influencing growth, metabolism and endocrine gland weights of the offspring. Growth, 1954, 18, 13–26.
4. MARGOLIN, S. E., & BUNCH, M. E. The relationship between age and strength of hunger motivation. Comp. Psychol. Monogr., 1940, 16, 1–34.
5. MONROE, R. A., & TURNER, C. W. Thyroid secretion rate of albino rats during growth, pregnancy and lactation. Mo. Agri. exp. sta. res. Bull., 1946, 403.