96 



THE FERN BULLETIN 



technical language on the page facing it. Twenty- 

 seven species are illustrated, mostly from photographs, 

 the rarest of these being the fragrant shield fern. 

 The booklet is apparently designed simply for the 

 identification of the ferns likely to be encountered, 

 since nothing of popular interest is added to the de- 

 scriptions, but for the use indicated, it is likely to be 

 eminently successful. The book may be had of the 

 author for 25 cents. 



A recent issue in Henry Holt & Company's Ameri- 

 can Nature Series, is a volume on " Plant Life and 

 Evolution" by D. H. Campbell well known to fern 

 students for his contributions on mosses and ferns. 

 The book traces the rise of the higher plants from algae 

 through the ferns following pretty closely the sequence 

 generally accepted and deriving the ferns from some 

 liverwort-ancestor related to Anthoceros. It will be 

 remembered that a volume has lately appeared in which 

 the theory is maintained that ferns and mosses are not 

 closely related and the re-statement of Campbell's posi- 

 tion will be very useful to those interested in following 

 the development of this phase of botany. The book 

 contains 350 pages and costs $1.60 net. 



