444 EXPEEIMEN'T STATION RECORD. 



The aging and conservation of wood. — Insulated wood, M. de Keghel {Rev. 

 G6n. Chim., 15 {1012), Nos. 2, pp. SI, SS; 5, pp. 85-93).— This is a discussion of 

 methods of artificially aging wood, of making insulated wood, and of conserving 

 wood with preservatives. 



National Forest timber for the small operator, W. B. Greeley (U. S. Dcpt. 

 A.gr. Yearbook 1912, pp. 405-Jfl6, pis. 3). — A popular discussion of the sales 

 policy of the Department on the National Forests with special reference to 

 opportunities afforded to small logging operators, as well as to farmers and 

 settlers in the vicinity of the forests. 



Seed collection on a large scale, H. H. Faequhar ( U. S. Dept. Agr. Year- 

 book 1912, pp. Jt33-4-'f2, j)ls. -i). — A detailed account is given of the methods em- 

 ployed in collecting large supplies of pine seed on the National Forests. 



Experiments on the influence of fertilizers in the nursery, B. Cuif (Ann. 

 Sci. Agron., J/, ser., 2(1913), I, No. 6, pp. Jf33-.'i5Jf) . — This is a descriptive account 

 of fertilizer experiments in forest nurseries which have been conducted under 

 the direction of the Nancy experiment station since 1906. 



Forest statistics (Statis. Jahrb. E. K. Ackerb. Min. [Vienna], 1910, pp. VI+ 

 441)- — A statistical account of the forests and forest enterprises in Austria for 

 the year 1910, including also game statistics. 



Annual progress report of forest administration in the Western and 

 Eastern Circles of the United Provinces for the forest year 1911—12, B. B. 

 OsMASTON, J. S. Campbell, and P. H. Clutterbuck (Ann. Rpt. Forest Admin. 

 West, and East. Circles [India], 1911-12, pp. 20+11+18+CIII+5).— The cus- 

 tomary statistical review of the constitution and management of the state forests 

 in the Western and Eastern Circles of the United Provinces, including a financial 

 statement for the forest year 1911-12. Data relative to areas, forest surveys, 

 working plans, etc., yields in major and minor forest products, revenues, and 

 expenditures are appended in tabular form. 



Administration report of the forest circles in the Bombay Presidency, 

 including Sind, for the year 1911—12 (Admin. Rpt. Forest Circles Bombay, 

 1911-12, pp. 177-\-5). — A report similar to the above on the administration of 

 the state forest in the Bombay Presidency and Sind. 



Report on forest administration in Burma for the year 1911—12, T. A. 

 Hauxwell, W. F. L. Tottenham, C. G. Rogers, and G. R. Ix)ng (Rpts. Forest 

 Admin. Burma. 1911-12, pp. S-\-Xiy-\-119). — A report similar to the above on 

 the administration of the state forests in Burma for the year 1911-12. 



DISEASES OF PLANTS. 



Studies on the Eusarium problem, H. W. Wollenweber (Phytopathology, S 

 (1913), No. 1, pp. 24-50, pi. 1, fig. 1). — Attention is called to the unreliability of 

 the stroma as a taxonomic character in determining species of Fusarium, and a 

 method is described for the differentiation of the species. 



The author has divided the genus into six sections based on physiological as 

 well as morphological characters. As a result of his studies he has concluded 

 that Neocosmospora, to which has been attributed the wilt of cowpeas, etc. (E. 

 S. R., 11, p. 944), is an obligate saprophyte and is not genetically connected with 

 the genus Fusarium. F. oxysporum and Vertidllium albo-atrum are thought to 

 have no connection with the leaf roll disease of Germany, but to cause stem 

 wilts with symptoms identical with the Kriiuselkrankheit as described by Reinke 

 and Berthold. Root rots of potatoes are caused by F. c(eruleum, F. discolor 

 sulphureum, F. trichothecioides, and F. ventricosum. The tuber ring discolora- 

 tion is said to be a secondary symptom of stem ring wilt disease. The con- 



