114 MINUTE MARVELS OF NATURE 



shown slightly magnified in Fig. 71. Wonderful 

 habitations are these^ and built entirely by their 

 tiny inhabitants. 



Remains of similar organisms are found in some 



Fig. 74. Fossil toopli) tcs IVoTi Xoifol]< 



of the oldest rock formations, o-ivine abundant 

 proof that the type flourished in the remote past. 

 Fossil species are unearthed from every corner 

 of our country, the rocks remaining as the 

 record of their existence ; and in Fig. 74 

 you may see a small group of them from 



