128 MICROSCOPICAL OBJECTS FOUND 



the physical economy of the world. Abounding 

 at almost every point, they act as nature's 

 universal scavengers, taking up those decom- 

 posing substances which would otherwise fill our 

 waters with impurity, and our atmosphere with 

 the elements of disease. 



Our feeling of wonder, however, reaches its 

 climax when we are informed that even many of 

 " the everlasting hills" owe their origin to such 

 pigmy architects of nature ; enduring monuments 

 of the mighty results that may ensue, from the 

 long-continued action of causes the most minute 

 and inappreciable. It is gratifying to find so 

 clearly written in this, one of the last opened 

 pages of nature's volume, a truth which in the 

 moral world, is everywhere proclaimed ; a truth 

 that should inspire the mind, not only with won- 

 der, but with humility and adoration. 



