CURRENT LITERATURE 



BOOK REVIEWS 



Warming's textbook 



In 1880 Dr. EuG. WARmxG published his Lehrbuch der allgemcinen Botanik, 

 which was followed by revised editions until the fourth appeared in 1901. In that 

 edition he associated with himself Dr. W. Johannsen, who elaborated the sec- 

 tions on the cell and on physiology. 



This fourth edition has been translated into German by Dr. E. P. Meineckk,' 

 with the collaboration, in two chapters, of Professor Johannsex, who has taken 

 occasion to revise these in part. Other shght changes have been introduced by 

 .Meixecke. But the book cannot be up to date, because, first, it is based on an 



_. _ ^ __*-.-- 1 /* 1 ^ r^r^i.Ai-1 Info \t\ Trwn*7 



began in 1904. This delay in publication the publishers apologize for, and 

 exonerate themselves, without saying to what it is due. The second part, about 

 one-third the dimensions of the first, was promised before the end of 1907, but a 

 this writing (March 2) has not been received. ■. 1 f 



The first five sections deal with what we should call the general morpholog)' 

 plants. Their titles are: i, The internal and external form of plants; 2, External 

 morphology of higher plants, nutritive organs; 3, The plant cell and its constitu- 

 ents; 4, Histology; 5, Anatomy of the root, stem, and leaf. Sections on repro- 

 duction, including discussion of the flower, inflorescence, fruit, seed, relation o 

 habitat, and evolution, are to follow in the second part. r, 1 j t», t > 



The term morpholog)' is much restricted by these authors, who hold that 1 

 concerns itself merely with the origin, development, and form of the extern 

 features of the plant body. However, under whatever head they are embraced 

 these chapters are well written, and the illustrations, mostly not original, are ^^ 



cted. . 1 



The physiology, to which two long sections (i8o pp.) are devoted is in general 

 X . . ^^\ - . , ,. J. ^ -1.,,^:^^ .^f Pmnhass fas was to be 



peculiar 



metabolism 



expected), there being a strong tinge of ecology. The section on 

 begins with a discussion of respiration as an exchange of gases, and ...^.— 

 of the respiratory quotient; has little to say of the physical processes of excnan 

 between the plant and the external medium, but gives much attention to the re a 



• T'u^ rlianter on movemenL 



tions of plants to each other and to other organisms. 1 ne cnapt 

 lo 4-^_ i__.. r . * . , . ._•.-• c 4^1.^ f.irirlamPTital features. 



^ Wakming-Johannsen, Lehrbuch der allgemeinen ^o^^^^ /r^^^^^^ Y^^^^ 



Ieinepttf Tmr. S^ro Pirf T. nn. vi + aSo. Iigs. 444' -t^eruii. 



p. Meinecke. 



traeger. 1907. M12, 



341 



