216 BOTANICAL GAZETTE [SEPTEMBER 
The Bonn text-book. 
WE have scarcely noticed the appearance of the translation of the second 
German edition of the Bonn text-book before the third edition is received? 
Few books have won for themselves such instantaneous and universal appro- 
bation, This welcome, the authors feel, has put them under obligation to 
maintain the work abreast of the progress of botanical science. Yielding to 
the frequently expressed wish for references to the most important literature, 
_they have included such in this edition. The references are brought together 
at the close of the volume, exceeding a thousand in number, as we estimate. 
This is a valuable addition. 
The other improvements, besides some changes in the text of minor 
importance, consist in the replacing of many of the older illustrations by new 
ones, and the increase in the number of the colored figures to more than 
double that in previous editions. They now include illustrations not only of 
the poisonous plants but also the most important official plants of the phar- 
macopeeia. The utility of these figures to foreigners is small, and doubtful, 
we think, even for medical and pharmacy students of Germany.—C. R. B 
Van Tieghem’s ‘‘Elements de Botanique,”’ 
THE appearance of a third edition 3 of this work is sufficient evidence of 
its usefulness. The first volume (pp. 559, with 235 illustrations) deals with 
general botany; the second (pp. 612, with 345 illustrations) with special 
botany. The first volume follows practically the same outline as in the pre- 
ceding edition, merely making such additions and corrections as were neces- 
sitated by recent research. No acknowledgments are made either for the 
figures or results of other investigators. While this might escape criticism in 
the case of familiar figures and statemerits which have been in common use 
for twenty years, it would seem no more than just to give credit for recent 
discoveries. For example, at least an “after Webber” might have been put 
under Webber’s figur 
Anatomical questions, as in all of Van Tieghem’s works are treated in a 
masterly manner. Morphology and physiology are intimately associated ; 
for instance, the physiology of the root, stem, or leaf immediately follows the 
morphology of the organ. 
The second volume, dealin 
ae g§ with special botany, has undergone a decided 
revision. . 
Instead of recognizing six orders of fungi, the Uredinee and 
‘ *STRASBURGER, NOLL, SCHENCK and SCHIMPER.— Lehrbuch der Botanik fiir 
ochschulen. Dritte verbesserte Auflage. 8vo. pp. viii 570, figs. 617, in as 
colored. Jena: Gustav Fischer. 1898. M. 8.50. . 
3VAN TIEGHEM, Pu.: Eléments de Botanique. Troisiéme Edition, revue et 
augmentée. Paris: Masson et Cie, 1898 
. 
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