Cumming, W. W. (1999). A review of Geraldine Jonçich's The Sane Positivist: A biography of Edward L. Thorndike. Journal of the Experimental Analysis of Behavior, 72, 429-432.

This book review, unfinished at the author's death, examines in historical context Thorndike's law of effect, his Animal Intelligence monograph of 1898, and related works on learning and behavior.

Key words: E. L. Thorndike, Animal Intelligence monograph, law of effect, learning theories, associationism, impulse, emission