FERNS 



A MANUAL FOR THE NORTHEASTERN STATES 



WITH ANALYTICAL KEYS BASED ON THE 



STALKS AND ON THE FRUCTIFICATION 



With over two hundred illustrations from original drawings and photographs 



By CAMPBELL E. WATERS 

 302 pages, square 8vo. Boxed, $3.00 net; by mail, $3.34 



This book is thoroughly authoritative, and is written in popular style. 

 It covers all the ferns in the region embraced either in Britton's or in Gray's 

 Manuals. 



"This book is likely to prove the leading popular work on ferns. No 

 finer examples of fern photography have ever been produced. Dr. 



Waters brings to his work fifteen years of experience in field and herbarium 

 study, and the book may be expected to prove of permanent scientific value, 

 as well as to satisfy a want which existing treatises have but imperfectly 

 filled."— PA?;// World. 



" For all who study or wish to study our native ferns Dr. Waters has 

 prepared a book which is sure to prove both helpful and inspiring. 

 Especially charming and significant are the views showing typical habits 

 and habitats." — The American Xaturalist. 



"There could hardly be a better book for those interested in the 

 subject." — Boston Literary World. 



OUR NATIVE FERNS 



AND THEIR ALLIES 



WITH SYNOPTICAL DESCRIPTION OF THE AMERICAN PTERIDOPHYTA 



NORTH OF MEXICO 



By LUCIEN M. UNDERWOOD 



Professor in Columbia University 

 Revised, xii+156 pages, i2mo - - - $1.00 



"The elementary part is clear and well calculated to introduce begin- 

 ners to the study of the plants treated of The excellent key makes the 

 analysis of ferns comijaratively easy. The writer cordially commends the 

 book. It should be in the hands of all who are es|)ecially interested in the 

 vascular cryptogams of the United States." — Bulletin of the Torrey Botan- 

 ical Club, N. Y. 



Henry Holt and Company 



29 West 23d Street, New York 



