146 THE PHILOSOPHY 



the eye-lids, and other parts of the body, are likewife effeds of ori- 

 ginal inftinds, and eflential to the exiftence of young animals. 



The love of light is exhibited by infants at a very early period. 

 1 have remarked -evident fymptoms of this attachment on the third 

 day after birth. When children are farther advanced, marks of the 

 various paffions gradually appear. The pafTion of fear is difcove- 

 rable at the age of two months. It is called forth by approaching 

 the hand to the child's eye, and by any fudden motion or unufual 

 noife. I once inftituted a courfe of experiments to afcertain the 

 periods when the various paffions, principles, or propenfities, of the 

 human mind are unfolded, and to mark the caufes which firfl: pro- 

 duced them. But, in lefs than five months after the birth of the 

 child, the bufinefs became too complicated and extenfive for the time 

 I had to beftow on fubjeds of this nature. 



The brute creation affords innumerable examples of pure in- 

 ftinds. 



When caterpillars are fliaken off a tree in every diredion, all of 

 them inftantly turn toward the trunk, and climb up, though they 

 had never formerly been on the furface of the ground. 



Young birds open their mouths upon hearing any kind of noife, 

 as well as that of their mother's voice. They have no apprehen- 

 fions of harm ; neither do they offer to ufe their wings till they ac- 

 quire more ftrength and experience. The lion's cub is not feroci- 

 ous till he feels force and adivity for deftrudion. 



Infeds invariably depoGt their eggs in fituations moft favourable 

 for hatching and affording nourifhment to their future progeny. 

 Butterflies, and other infeds, whofe offspring feed upon vegetables, 



uniformly 



