Horticultur und Agricultur. 223 



Roberts, H. F., The Catalpa as an Economic Tree. 



(Bulletin No. 108. Kansas Agricultural College. 1902.) 



A discussion of the catalpa (Catalpa speciosa), its systematic Posi- 

 tion, growth of the tree, and the uses to which it has been put. 



von Schrenk. 



Mac Pherson, James, Garden plants-their geography- 



LXXVIII. (Park and Cemetery and Landscape Gardening. 



XII. p. 309. 2 fig. June 1902.) 



Continuation oi a series of articles on the subject, that have been 

 in course of publication in the same Journal for several years. Contains 

 a habit portrait of Fagus sylvatica pendula and a winter portrait of 

 F. ferruginea, in illustration of the genus Fagus, to which this article is 

 devoted. Trelease. 



Maiden, J. H., Presidential Address. (Proceedings of the 

 Linnean Society of New South Wales. Vol. XXVI. 1902. 

 p. 740—804. With map.) 



In his annual address to the Society, delivered on March 22, 

 1902, the President, after referring to matters of general 

 botanical interest enters upon a discussion of „The Forestry 

 Question in New South Wales", in the course of which he 

 indicates the principles on which australian forestry Operations 

 should be conducted. The necessity of a botanical survey of 

 New South Wales is urged and a definite scheme according 

 to which such a survey may be made is indicated. The 

 State is subdivided into 18 botanical counties and a list of 

 published papers dealing with the botany of each is given. 

 The „adaptability of plants to certain geological formations" 

 and the distribution of plants as affected by (a) Volcanic out- 

 bursts, (b) alluvial deposits, are discussed. The importance of 

 the study of physiographic ecology is pointed out and the 

 grass plains and brushlands of the „Plains of Dorrigo" are 

 instanced as a promising field for the investigation of ecological 

 problems. „The so-called ,spontaneous' Growth of Trees"; 

 „Australia's Duty in regard to Botanical Investigation in 

 Australia and Polynesia"; „Hybridisation work in New South 

 Wales"; and „Comparative Study of Seedlings and Suckers" 

 are the headings of other sections of the address. The author's 

 work on Eucalyptus and the Variation of Eucalypts under 

 cultivation are shortly discussed. The address concludes with 

 a short essay entitled „what is a species?". H. H. W. Pearson. 



WESTON, E. A., Sweet Briar as a Goat exterminator. 

 (Agricultural Gazette of New South Wales. Vol. XIII. No. 3. 

 p. 313. March 1902.) 



Ces poils qui tapissent interieurement le fruit de Rosa rubiginosa 

 (Sweet Briar) causent la mort d'un grand nombre des chevres en pro- 

 duisant des calculs (aegagropiles) qui obstruent mdcaniquement la lumi- 

 ere de l'intestion. Les chevres avaient ete introduites en certains endroits 

 pour debarrasser le sol des rosiers. Ce sont les rosiers qui ont elimine 



