AUTIOLKS IN JOUKNALS 149 



which deals with the morphology of Angiosperms. This is treated 

 in six chapters, devoted respectively to stem, leaf, root, flower, frui 

 and seed, and development. In the first part we note a somewhat 

 full account of tlie various forms of cell and tissue elements, the 

 metliods of wall-thickening and the development of vessels being 

 especially well exi)lained and illustrated. In the second part the 

 structure and arrangement of primary and secondary tissues is 

 worked out by a study of various types. Thus for the primary 

 structure of the stem we have Mercuri'ilis annua, Spartijonjuvceiim, 

 Veronica Beccabnn[/a, Com^ulvuhis arvends, for dicotyledons ; and for 

 monocotyledons, Zea Mai/s, Honieum murinum, Phcenix dacti/lifera, 

 and Convallaria niajalis. Diagrammatic drawings illustrating the 

 course of the bundles, and the arrangement of tissues in transverse 

 section, and drawings of histological preparations under higher 

 magnification are freely supplied. There is no doubt something to 

 be said for this type method of studying plant structure, though, 

 taking into consideration the attention which is now paid to 

 practical work, the teacher may prefer to relegate such study of 

 types to the laboratory and to look to the text -book to correlate 

 and gather into one general account the facts which have been thus 

 elaborated. 



Two useful features of this work are the resume at the end of 

 each part and the short historical review. Thus at the end of part i. 

 we find a short accoimt of the work of Hooke, Grew, Malpighi, 

 Schieiden, and others on the cell and tissues, with reproductions of 

 some of their figures. The historic side is so often neglected that 

 we are glad to note that the authors have made its introduction one 

 of the special points in their work. 



A. D. sx. 



ARTICLES IN JOURNALS. 



Bot. Gazette (23 Feb.). — H. C. Cowles, ' Physiographic Ecology 

 of Chicago.' — J. Donnell Smith, * Undescribed Plants from Central 

 America ' (1 pi.). 



Bot. Zeitumj (1 March). — E. Meissner, * Ueber das Verhaltuiss 

 von Stamm- und Nadellange bei einige Coniferen ' (1 pi.). 



Bull, de VHerh. Boissier (28 Feb.). — 0. & B. Fedtschenko, 

 ' Materiaux pour la Flore du Caucase ' (cont.). — J. Freyn, • Ueber 

 neue bemerkenswerthe orientalische PHanzenarten.' — J. Huber, 

 • Plantge Cearenses.' — G. Hegi, ' Das Obere Toesstal.' 



Bull. Torrey Bot. Club (2 March).— F. E. Lloyd & S. M. Tracy, 

 'Insular Flora of Mississippi and Louisiana.' — E. P. Bickuell, 



• The dates assigned to the numbers are those which appear on their coverg 

 or title-pages, but it must not always oe inferred that this is tne actual date of 

 publication. 



