LIFE 



425 







er; 

 or 



:: 



ry like that of existing ferns: The larger number were herbaceous, 

 but there were tree-forms not unlike tree-ferns in general appear 



ce. These plants were already far advanced in their evolu- 



n, though little is known of their antecedents. They are gen- 

 erally thought to have been the progenitors of cycads and of most 

 or all other gymnosperms. In numbers, fern-like plants appear 



have surpassed all others. 



Numerous wings and other fragments of insects have been 

 und, chiefly near St. Johns, New Brunswick. Myriapods (thou- 

 sand legged worms), arachnoids (spiders), and scorpions have been 

 reported, and also terrestrial mollusks. 



