158 FUNCTIONS AND INSTINCTS. 



out-number beyond all statement of numbers, all 

 the other animals together that people the whole 

 globe, that they should probably enter into us 

 and circulate in our blood, nestle between our 

 teeth, be busy every where, and perceived no 

 where, till the invention of the microscope drew 

 aside the veil between us and these entities, and 

 we saw how God had filled all things with life, 

 and had based the animal kingdom upon living 

 atoms, as well as formed the earth and the world 

 of inert ones. But to us the wondrous spectacle 

 is seen and known, only in part ; for those that 

 still escape all our methods of assisting sight, and 

 remain members of the invisible world, may 

 probably far exceed those that we know. 



We may conclude that this vast, or rather infi- 

 nite, host of animalcules was not created merely 

 to be born and die ; was not sown, as it were, 

 over every part of the earth's surface, lurking in 

 seeds, and other vegetable and animal substances, 

 till coming into contact with fluid matter of what- 

 ever description it starts into life, and swarming 

 in the ocean, and its tributary streams ; it was 

 not thus dispersed every where, either alive, or 

 in a state to revive and live, but for some great 

 purpose, for which its organization, structure and 

 station amongst animals, particularly adapt it. 



With respect to its immediate action upon the 

 vegetable and animal kingdoms, it has been as- 

 certained, as to many species, that they ascend 



