much individuality in handling, and renders all volumes of this 

 kind more or less alike. "Plant Structures," however, is lifted 

 above the ordinary by the author's lucid style which makes the 

 explanations of structure and growth not only intellegible, but 

 attractive. Having shown the lines along which the higher plants 

 have developed, the book gives a survey of the families of flower- 

 ing plants and ends with chapters upon plant physiology and 

 ecology. As in the former volume, the presswork and paper are 

 excellent and there is a wealth of illustrations which illustrate. 



Some interesting facts regarding the early fern genera will 

 be found in Dr. Underwood's "Genera of Ferns, "f in which he 

 reviews the literature of the subject from the time of Linnseus to 

 1832. The author first explains the principles by which he is 

 guided in limiting fern genera, and then discusses the genera 

 published, beginning with Hill (1756) and ending with Hooker 

 and Greeville (1S31). A summary of the genera proposed in 

 which those with claims to validity are indicated, is also given. 

 Those who object to changes in nomenclature will not be pleased 

 to hear that if the rules set forth are strictly interpreted, we shall 

 have Athyrium for parts of Asplenium, Gymnopteris for Gymno- 

 gramme, Felix for Cystopteris and Dennstiudtia for Dicksonia. 

 But whether the reader agrees with the conclusions of the author 

 or not, the pamphlet is a valuable one for students of ferns to 

 possess. 



t" A Revision of the Genera of Ferns Proposed Prior to 1832," by 

 Lucien Marcus Underwood, Mem. Torr. Bot. Club. Vol. V. No. 4. 8-vo . 

 42 pp. 25c. 



THE LINNAEAN FERN CHAPTER 



OF THE AGASSIZ ASSOCIATION. 



— The Annual Report of the Chapter will soon be issued. It 

 will contain the officers' reports and a list of Chapter members. 

 All changes of address should be reported to the Secretary at 

 once. — C. 



— Professor W. A. Murrill having been obliged, through press 

 of other duties, to resign from the secretaryship of the Chapter, 

 the Executive Council takes pleasure in announcing the appoint- 

 ment of Miss Margaret Slosson to that position. All communica- 

 tions intended for the Secretary should be addressed to Andover, 

 Massachusetts. — W. R. M. 



