176 Angewandte Botanik. 



Frothingham, E. H., The Northern Hardwood Forest: its 

 Composition, Growth and Management. (Bull. 285, U. S. 

 Dept. Agric. Oct. 22, 1915.) 



This publication of 79 pages is illustrated with 15 plates some 

 with 1, 2 and 3 figures each. The author describes the topography 

 and climate of the region, where the northern hardwood trees grow, 

 with an account of the composition, form and growth of the forest. 

 The economic importance of this forest is considered, as also its 

 management, while an appendix gives 46 volume tables of the 

 principal trees. Harshberger. 



Johnson, D. S., Cinchona as a Tropical Station for Ame- 

 rican Botanists. (Science. N. S. XLII. p. 917—919. 1916?) 

 This is a Symposium on the value of Cinchona in the Blue 

 Mountains of Jamaica as a centre for botanic research. The 

 discussion is opened by Dr. Johnson, who gives a general descrip- 

 tion of the Station. The fern flora of Cinchona is described by 

 Dr. D. H. Campbell, the lichens and bryophytes by Dr. A. W. 

 Evans, the Cytologie material to be obtained there is considered 

 by C. H. Farr and Cinchona as a suitable location for experi- 

 mental work is presented by Dr. Forrest Shreve. 



Harshberger. 



Mattoon, W. R., The Southern Cypress. (Bull. 272, U. S. Dept. 

 Agric. Sept. 27, 1915.) 



74 pages with 12 plates and 6 figures comprise this bulletin, 

 which is devoted to a discussion of the geographic and commercial 

 ränge, present supply and annual cut of the cypress, Taxodium. 

 The properties of its wood are considered, as also its uses and 

 methods of lumbering. Markets, prices and stumpage are described 

 together with forest management and life history of the tree. The 

 appendix comprises several volume tables. Harshberger. 



Schaer, E., Notiz über Lignum nephriticum. (Verh. Schwei- 

 zer. Naturf. Ges. 96. Jahresvers. 1913 in Frauenfeld. II. p 183. 

 Aargau, Saurländer. 1914.) 

 J. Möller wies nach, dass das Holz von Pterocarpus Amphy- 

 memium stamme. Wichtig ist die Fluoreszenz des Holzes. \'erf. 

 konstatiert, dass mit einem noch stark fluoreszierenden Auszuge des 

 Holzes von 1 g auf 10.000 noch 0,1 — 0,2 mg. Schwefelsäure leicht 

 nachweisbar sind und das zur Hervorrufung der Fluoreszenz auch 

 freie Alkaloide (Brucin, Chinin etc.) genügen. 



Matouschek (Wien). 



Sherfesce, W. F., The Reforestation Movement in China. 

 (Amer. Forestry. XXI. p. 1033-1040. Nov. 1915.) 



Through the energy, perseverance and skill of Prof. Joseph 

 Bailie, supported by influential Chinese and by the University of 

 Nanking an admirable beginning has been made in reforestation 

 of China on the slopes of Purple Mountain just outside the 

 walls of Nanking. Harshberger. 



Ausgegeben: 13 März 1V»I'7 



Verlag von Gustav Fischer in Jena. 

 Buchdruckerei A. W. Sijthoff in Leiden. 



