of any group and the study of a large series in Oleichenia, Anemia 

 and Lygoditim as vrell as Acrost ic'niim whows that he has lots of messes 

 among the ferns. I am convinced that the only v^ay to study ferns is to 

 go virhere there are more than at all the other collections of the BBH 

 world ^combined, tho of course our United States species are very m uch 

 bette?^ represented in several American collections than at KeiPfS' 



Yours slncerely-j 



i 



I 



