. The Journal of comparative neurology and psychology. Fig. J. No. 5 getting food after inilliiig plug (Fig. S) ; 0, slide door; b,string; c, plug. Page 412. 45^ Journal of Comparative Neurology and Fig. 10. No. 4 pushing the button, ft. in the Button Experiment; o, slidedoor; o, string. Page 419. Haggerty, I nutation in Monkeys. 453

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