Band 142. No. 6. XL. Jahrgang. 



I. Aligemeines. 



Bower, F. 0. 1919. Botanv of the living plant. (London, Macmillan 



& Co. 1919. 80. X, 580 pp. 447 f.) 

 Bulletin (1919) of the New York botanical Garden. (Vol. X. N« 37. 



p. 1-87.) 

 Coulter« J. M. 1919. The botanical opoortunity. (Science. N. S. IL. 



p. 363-367.) 

 Eichwald, P. E. und A. Fodor. 1919, Die physikalisch-chemischen 



Grundlagen der Biologie. Mit einer Einführung in die Grund- 

 begriffe der höheren Mathematik. (Berlin, J. Springer. 1919. S^. 



X, 510 pp. 119 A. 2 T. Preis M. 42.— mit 10% Teuerungszuschlag.) 

 Engel. 1918. Ein botanisches „Naturwunder". (Jahrh. Ver. vat. Natk. 



Württemberg. LXXIV. p. 275-277. 1 A.) 

 France, R. H. 1919. Streifzüge im Wassertropfen. 14. Aufl. (Stuttgart 



1919. 8°. 94 pp. 1 T. u. F.) 

 Gager, C. S. 1919. A laboratory guide for general botany. Second 



edition. (Philadelphia, P. Blakiston's Son & Co. [1919]. X, 206 pp.) 

 Giesenhagen, K. 1919. Lehrbuch der Botanik. 7 Aufl. (Stuttgart,' Fr. 



Grub. 1919. 80. VII, 439 pp. 560 F.) 

 Günther, K. 1919. Der Naturschutz. 14. Tausend. (Stuttgart 1919. S». 



V, 288 pp. 54 A.) 

 Herbarium. 1919. Nr. 47—49. (Leipzig, Th. O. Weigel. 1919. 8o. 



p. 447—454, 456-466, 467-474.) 

 Hitchcock, A. S. 1919. Report of the Committee on generic types 



of the Botanical Society of America. (Science. N. S. IL. p. 333—336.) 

 Hughes, F. T. 1919. Botany in the city high schools. (Torreya. 



XIX. p. 57—65.) 

 fTieghem, Ph. van 1918. Elements de botanique. T. I et II. 5. edit. 



par Prof. J. Costantin. (Paris. Masson et Cie. 1918. XV, 619 pp. 



260 f. et XX, 743 pp. 326 f.) 

 Weaver, J. E. 1918. The quadrat method in teaching ecology. 



(Plant World. XXI. p. 267—283. 7 f.) 



U. Anatomie. 



Aivarado, S. 1919. La Ana estructura de los vasos lenosos (N. p.). 

 (Bei. r. Soc. espafiola Hist. nat. XIX. p. 66—75. 7 f.) 



Bailey, S. W. 1919. The röle of the microscope in the identification 

 and Classification of the timbers of commerce. (Journ. of Forestry. 

 XV. p. 1—13. 3 pl.) 



Balls, W. L. 1919. The existence of daily growth-rings in the cell 

 wall of cotton hairs. (Proc. r. Soc. London. B. XC. p. 542—555. 

 11 f. 3 pl.) 



Briquet, J. 1919. Les pseudo-glandes et les trichomes involucraux des 

 chardons. (C. R. Soc, Phys. et Hist. nat. Geneve. XXXVI. p. 18—22.) 



Bugnon, P. 1919. Sur une nouvelle methode de coloration elective 

 des membranes vegetales lignifiees. (C. R. Ac. Sc. Paris. CLXVIII. 

 p. 62—64.) 



Dixon, H. H. 1919. Mahogany and the recognition of some of the 

 different kinds by their microscopic characteristics. (Notes bot. 

 School Trinity Coli. Dublin. III. p. 3—58. pl. XXII— XLIV.) [Re- 

 print Proc. r. Dublin Soc. N, S. XV. N« 34. Dec. 1918.] 



Denis, M. 1919. Recherches anatomiques sur quelques plantes litto- 

 rales de Madagascar. (Rev. g€n. Bot. XXXL p. 33-52, 115—120, 

 129-142. ill.) 



Ensign, M. R. 1919. A staining method for vascular tissue. (Phyto- 

 pathology. IX. p. 180.) 



Botan. Central blatt. Band 142. 1919. . 6 



