

are active and busy in their labours, cannot be ap- 

 proached with impunity by any person. These 

 mounds are generally of a serai -spherical form, and 

 from five to eight feet in diameter, and from two to 

 four feet in height. There are but few persons who 

 would not say, on a slight examination of these 

 mounds, and without being acquainted with the habits 

 of these little animals, that it was impossible they 

 could have been built or formed by such means with- 

 out producing a correspondent depression of the earth 

 in their immediate vicinity. Such, however, is not 

 the fact. On the contrary they have been raised, to 

 the above size, sometimes in the course of two or three 

 years, by the industry and perseverance of these com- 

 paratively minute animals, 



W hat may we not expect then from the labours of 

 men, through a series of ages, when assisted in the 

 work by such powerful auxiliaries as wind and rains ? 



