CORRESPONDENCE AND INFORMATION 



387 



A VIEW OF TEREDO BORINGS UNDER A POCKET MICROSCOPE. 



widely distributed and do enormous 

 damage to submerged timber. Teredo 

 navalis is abundant along our shores 

 and also on the coasts of Europe, where 

 it has done great damage to the wood- 

 work of the dikes of Holland. 



"The eggs develop within the gill 

 cavity of the teredo and are cast out 

 chiefly in May and June as actively 

 swimming ciliated larvae. They then 

 develop a pair of relatively large shells 

 resembling those of a clam, and finally 

 eyes, and a long foot which enables 

 them to crawl over timber into which 

 they soon burrow." 



We discover a new world every time 

 we see the earth again, after it has been 

 covered for a season with snow. — Thor- 

 eau. 



When I detect a beauty in any of the 

 recesses of nature, I am reminded by the 

 serene and retired spirit in which it re- 

 quires to be contemplated of the inex- 

 pressible privacy of life. How silent 

 and unambitious it is ! The beauty 

 there is in mosses will have to be con- 

 sidered from the holiest, quietest nook. 

 — Thoreau. 



