Standard Books on Ferns 



1 



^ "HOW FernS GrOW," by Margaret Slosson. With 46 

 $ plates by the author. Large 8vo. $3.00 net, by mail $3.34. 



A valuable contribution to fern literature in that it not only enables 

 j£ fern students to distinguish different species of mature ferns, but points 

 ^ out characteristics of the different kinds at all stages of development, 



and shows the genetic relations of ferns to each other and to the rest of 

 ^ plant life. The plates, nearly all reproducing ferns at their natural size, 



are particularly excellent. Published 1906. 



" No one has hitherto devoted, as the present author does, a whole 



book to a readable account of the youth of ferns. . . . With great 

 $ pains she has studied the various metamorphoses and has recorded in 

 j| good photographs her interesting results. The transformations are all 

 ^ well shown by the engravings, but she has supplemented these engrav- 

 Sfc ings by clear text." — The Nation. 



j| " Botanical books especially, of late years, have been remarkable for 

 ^ wealth and beauty of illustration, but even among these " How Ferns 

 $ Grow" is notable. The pictures are purely scientific, nearly all are the 

 ^ size of nature, and they are so numerous and so carefully arranged as 

 $ to make the text almost superfluous. ... A beautiful book that every 

 $ fern lover will want." — N. Y, Sun. 

 & 



§ "Ferns," by Campbell E,. Waters, of Johns Hopkins University. 



362 pp., square 8vo. Over 200 illustrations from original drawings and 

 j£ photographs. S3.00 net, by mail, S3.34. 



A manual for the Northeastern States, thoroughly authoritative and 

 ^ written in a popular style. It covers all the ferns in the region em- 

 $ braced either in Britton's or in Gray's Manuals. A key based on the 

 g stalks,' as well as one based on frutification, differentiates it from other 

 ^ analytical keys now existing. 



" The ideal fern-book. . . . The best fern-book that has appeared, 

 jj* The illustrations are superb." — Dr. F. H. Knowlton, U. S. National 

 ^ Museum. 



" The best fern-book — beautiful and scientific." — Critic. 

 ^ " Likely to prove the leading popular work on ferns. ... It can 

 $ confidently be asserted that no finer examples of fern photography have 

 ^ ever been produced." — Plant World. 



I "Our Native Ferns and Their Allies." With 



Synoptical Description of the American Pteridophyta North of Mexico. By 



j£ Lucien M. Underwood, Professor in Columbia University. Revised. 



$ xii + 156 pp. 5 1. 00 net, bv mail, Si. 10. 



j£ " The elementary part is clear and well calculated to introduce be- 



$ ginners to the study of the plants treated of. The excellent key makes 



^ the analysis of ferns comparatively easy. The writer cordially com- 



>;> mends the book. It should be in the hands of all who are especially 



$ interested in the vascular cryptogams of the United States." — Bulletin 



g of the Torrey Botanical Gltib, N. Y. 



I 29 West Twenty-tWd Street : : NEW YORK 



Henry Holt and Company 



