CHAPTER VII. 



THE MICROSCOPIC WONDERS OF THE SEA. 



AN eloquent modern writer, in arguing for the existence 

 on this earth of an invisible world of spirits, draws a 

 striking illustration of his subject from our connection 

 with the lower animals, whose forms we indeed see 

 around us, but the secrets of whose being, whose motives 

 of action, and whose final destiny, remain unfathom- 

 able mysteries. "We are," says he, "in a world of 

 spirits, as well as in a world of sense, and we hold com- 

 munion with it, and take part in it, though we are not 

 conscious of doing so. If this seems strange to any one, 

 let him reflect that we are undeniably taking part in a 

 third world, which we do indeed see, but about which 



