WILLIAM SMELLIE. 39 



3. On the respiration of animals. 



4. On the motions of animals. 



5. On instinct. 



6. On the senses of smelling, tasting, hearing, 

 touch, and sight. 



7. On the infancy of animals. 



8. On food. 



9. On the sexes of animals. 



10. On puberty in different animals ; its symp- 

 toms and effects. 



11. Of love ; sexual intercourse, and parental 

 affections, 



12. Of the transformations which various ani- 

 mals undergo. 



13. Of the various habitations of different 

 animals, as accommodated to their several exigen- 

 cies. 



14. Of the hostilites of the several kinds of 

 animals, and the advantages derived from this 

 seemingly destructive institution of nature. 



15. Of the artifices employed by animals in 

 catching their prey, and in escaping their ene- 

 mies. 



16. Of the association of animals. 



17- Of the docility of animals; their improve- 

 ment by culture or education, and the effects 

 produced by domestication. 



18. Of the character and disposition of ani- 

 mals. 



19. Of the principle of imitation in animals. 



20. Of the migrations of various animals. 



21. Of the longevity and death of animals. 



