Conclusion

Instinct and reason—Specialized instincts and "intelligent accidents"—Abstraction in the dog—In the elephant—The kinship of mind in man and the lower animals shown by the phenomenon of dreaming—By the effects of drugs—The action of alcohol on rhizopods—On jelly-fish—On insects—On mammals—Animals aware of the medical qualities of certain substances—Recognition of property rights—Animals as tool users—Instinct and reason differentiated—Summary. 215

Bibliography 225

Index 227