We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
Ericksen, S. C. (1942). J. genet. Psychol.60, 177.Google Scholar
Harlow, H. F. (1932). J. genet. Psychol.41, 430.Google Scholar
Harris, L. J., Clay, J., Hargreaves, F. J. & Ward, A. (1933). Proc. roy. Soc. B, 113, 161.Google Scholar
Richter, C. P. (1940). Quoted by Munn, N. L. (1950). In Handbook of Psychological Research on the Rat, p. 63. Cambridge, Mass.: Riverside Press.Google Scholar
Richter, C. P., Holt, L. E.Jr. & Barelare, B. (1937). Science, 86, 354.CrossRefGoogle Scholar