PETS. 



2I 9 



prison-doors, the little marmosets huddle together like 

 the princes in the Tower, all about a matter they would 

 disdain to notice in daytime. The old males of the 

 anthropoid apes are about as hard to scare as any living 

 creature, but after dark the veriest trifle will inspire them 





SURVIVAL OF THE FITTEST. 



with an almost supernatural fear ; and it may be a mere 

 fancy, but I cannot get rid of the notion that this night- 

 horror of our hirsute relatives must be the origin of 

 the spectre-dread of savage nations, and indirectly, per- 



