VOLUNTARY MOTION. 377 



pressions from the external senses.* In many animals, a 

 much more general suspension of the actions of life, extend- 

 ing even to the vital functions of respiration and circulation, 

 takes place during the winter months, constituting what is 

 termed Hybernation. 



* The only indications of dreaming given by the lower animals occur in 

 those possessed of the greatest intellectual powers, such as the Dog, among 

 quadrupeds, and the Parrot, among birds. 



VOL. II. 48 



