Mosses and Lichens 



York Botanical Gardens, and to Dr. Curtis, of Columbia, for 

 assistance with certain subjects; and especially to Mr. Williams, 

 a moss and lichen specialist of the New York Botanical Gardens, 

 who named the lichens pictured in the book and undertook the 

 laborious task of reading the copy before it was submitted to 

 the publishers. 



The pen-and-ink drawings were made by the author direct 

 from nature or were redrawn from the works mentioned in the 

 ''Authorities consulted." 



Vi 



