LECTURE III. 



ADAPTATION OF ANIMALS TO THE WORLD BY STRUC- 

 TURE, FUNCTION, AND INSTINCT. 



Adaptation of Animals to the World. Special adaptations. 

 Chance excluded. Man as a physical being differs only in 

 degree. His sources of enjoyment complex. /;/ animals 

 nothing but adaptations to this world. Whole classes to be 

 treated of. Water Animals. Microscopic. Coral Ani- 

 mals. Jelly-fishes. Starfishes. Mollutks. Perfect pro- 

 vision for each form. 77/6- Pinna. Saxicavas Nautilus. 

 Worms. Crustaceans. Insects. FisJies. Reptiles. 

 Birds. If am mats. rifted for change of season. Hiber- 

 nation. Relation to length of year. Instinct. Supple- 

 ments structure and function. Gives higher type of life. 

 Defined. Intelligence in Animals. Vegetative life in 

 Animals. Relation of instinct to specific structure. The 

 .\\itica. Instifict often blind in its action. The Cicada. 

 Tent moth. Migration of fishes. Conscious parental 

 relation in birds. Uniformity of action resulting from 

 instinct. Wide range of instinct in Mammals The 

 Muskrat. Instinct of the young supplem. nted by tJiat of 

 the parent. The body and mind fitted for each other. 



WE have thus far considered man merely as an 

 animal ; and, as such, we have seen the adaptation 

 of his body to the world in which he lives. 



His physical structure, and the nature and power 

 of his senses, show that he was either adapted by 

 creation to this globe already existing, or that the 

 globe was fashioned and placed as it now is in anti- 

 cipation of the being that was to inhabit it. It is 



