Wherry, Edgar Theodore  1885- <br/><br/>
The fern guide :  Northeastern and Midland United States and adjacent Canada / 
by Edgar T. Wherry ; illustrated by James C.W. Chen. 
 - Garden City ; N.Y. :  Doubleday,  1961. 
 - 318 p. :  illus. ;  20 cm. 
 - Doubleday nature guides series ; .
<br/><br/>includes bibliographical references and indexz 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ferns--Identification.--Northeastern States<br/>Ferns--Identification.--Middle West<br/>Ferns--Identification.--Canada, Eastern
<br/><br/><label>Dewey Class. No.: </label>587.30973  / WHF 1961