The mentality of apes : by Wolfgang Kohler ... - Kohler, Wolfgang, 1887-; Winter, Ella, 1898- (New York : Harcourt, Brace & company, 1926)
"Printed in Great Britain."
" Appendix . some contributions to the psychology of chimpazees" : p . 281-342.
Keywords: Apes; Animal intelligence; Chimpazees