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  • Chimpanzee Intelligence and its Vocal Expressions. By Robert M. Yerkes and Blanche W. Learned . (Baltimore: The Williams and Wilkins Company. 1925.)

Philosophy

Table of Contents - January 1926 - Volume 1, Issue 01  

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New Books

Chimpanzee Intelligence and its Vocal Expressions. By Robert M. Yerkes and Blanche W. Learned . (Baltimore: The Williams and Wilkins Company. 1925.)

C. L. M