Chapter 6

INSTINCT 105

The Difference Between an Instinct and a Reflex 107

An Instinct Is a Native Reaction-Tendency 109

Fully and Partially Organized Instincts 111

Instincts Are Not Ancestral Habits 113

Instincts Not Necessarily Useful in the Struggle for Existence 114

The So-called Instincts of Self-preservation and of Reproduction 115

Exercises 117

References 117