# The Mental Life of Monkeys and Apes: A Study of Ideational Behavior

Author: Yerkes, Robert Mearns, 1876-1956

Genre: Animal

Language: English

License: Public domain

Source: https://www.gutenberg.org/ebooks/10843

Amazon editions: https://www.amazon.com/s?k=The+Mental+Life+of+Monkeys+and+Apes%3A+A+Study+of+Ideational+Behavior+Yerkes&tag=cyberlibrar00-20

## Summary

1. Julius, _Pongo pygmaeus_: Box stacking experiment Box and pole experiment Draw-in experiment Lock and key test 2. Skirrl, _Pithecus irus_: Box stacking experiment Box and pole experiment Draw-in experiment Hammer and nail test Other activities 3. Sobke, _Pithecus rhesus_: Box stacking experiment Draw-in experiment Box and pole experiment Other activities

## Chapters

- [Chapter 12](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/12/index.md)
- [Chapter 15](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/15/index.md)
- [Chapter 14](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/14/index.md)
- [Chapter 16](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/16/index.md)
- [Chapter 17](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/17/index.md)
- [Chapter 1](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/1/index.md)
- [Chapter 18](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/18/index.md)
- [Chapter 13](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/13/index.md)
- [Chapter 2](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/2/index.md)
- [Chapter 10](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/10/index.md)
- [Chapter 3](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/3/index.md)
- [Chapter 4](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/4/index.md)
- [Chapter 5](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/5/index.md)
- [Chapter 9](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/9/index.md)
- [Chapter 8](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/8/index.md)
- [Chapter 7](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/7/index.md)
- [Chapter 6](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/6/index.md)
- [Chapter 11](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/11/index.md)
- [Chapter 19](https://www.cyberlibrary.org/en/books/the-mental-life-of-monkeys-and-apes-a-study-of-ideational-behavior-10843/chapters/19/index.md)