566 THE AMERICAN NATURALIST. [Vol. XXXVII. 



It is perhaps unfair to the book to have picked out such passages, 

 where the handling of the subject is not in accord with the ideas of 



a careful and conservative — almost too conservative — treatment of 

 the subject of plant physiology. According to one's point of view, its 



style, in which it is written. It will no doubt prove a useful addi- 

 tion to the somewhat slim stock of reading books in plant physiology 

 which are at the disposal of the English reading student. 



H. M. R. 



Notes.— The American Botanist for April contains the following 

 articles: — Bailey, "Violets"; Bradshaw, "The Chilicothe Vine"; 

 Blight, "What is American Weed?"; Fetherolf, "Among Texas 

 Ferns " ; and Steele, " Species or Varieties ? " 



Part IX of Hough's American Woods, published at Lowville, N. Y., 

 comprising nos. 201 to 225 inclusive of his admirable sets of radial, 

 tangential, and cross sections of each species, is devoted to Pacific 

 Coast species, and is accompanied by a text brochure including, in 

 addition to an account of each of the species represented in this part, 

 leaf and fruit keys to the entire series thus far issued. 



The Botanical Gazette for April contains the following articles : — 

 Davis, " Oogenesis in Saprolegnia " ; Mottier, " The behavior of the 

 chromosomes in the spore-mother-cells of higher plants and the 

 homology of the pollen and embryo-sac mother cells " ; Hitchcock, 

 "Notes on North American grasses — III, New species of Will- 

 kommia," and Bower, " The morphology of spore producing members." 



The Bryologist, for May. contains the following articles : — Grout, 

 " Some interesting forms of Polytrichum " ; E. G. Britton, " Notes on 

 nomenclature — II": Bailey, " An interesting tree"; Grout, "Sun 

 prints in bryology — additional notes"; Holzinger, " Obituary, M. 

 Emile Bescherelle," and " Seligeria iristichoides in southern France " ; 

 and Williams. " Oedipodium Griffithianum" 



The Bulletin of the Toney Botanical Club for April contains the 

 following articles :— Goebel, "Regeneration in plants"; Morgan, 

 "The hypothesis of formative stuffs"; Howe and Underwood, "The 



and the Canary Islands"; Murrill, "The Polyporaceae of North 

 America— III, the genus Fomes " ; Piper, "Four new species of 

 grasses from Washington " ■ Osterhout, " New plants from Colo- 



