1919] DISEASES OF PLANTS. 343 



FORESTRY. 



The forests of Buchanan County, Va., \V. G. Schwab (Va. Oeol Com., Off. 

 State Forester Bui. 16 (1918), pp. 20, pis. 8).— A survey of the forests and fol 

 activities in Buchanan County, Va. The Important phases discussed Include 

 distribution of species, forest types, distribution of forests, classes <»f forest, 

 methods of lumbering in the past and at present, markets for lumber and 

 minor products, stumpage values, forest fires, reproduction and rate of growth 

 of young stands, the future of the forests, and the Lumber Industry, 



The forests of Tazewell County, Va., W. G. Schwab (Va. drol. Com.. Off. 

 State Forester Bui. 18 (1911), pp. Ik, pis. 7). — A survey, similar to the ab< 

 of the forests and forest activities in Tazewell County, Va. 



Effect of grazing upon western yellow pine reproduction in central Idaho, 

 \Y. N. Sparhawk (D. S. Dept. Agr. Bui. 738 (1918), pp. 31, pis. 4). — An inten- 

 sive study was conducted on three sheep grazing allotments of the Payette 

 National Forest in central Idaho during the years 1912 to 1914, inclusive. It 

 is believed that the results here presented are applicable to the entire western 

 yellow pine region in central Idaho. 



The method of study is described, and data are given on the nature and 

 amount of injuries caused by sheep grazing, sizes injured, season of injury. 

 relation between amount of damage and intensity of grazing, cumulative effect 

 of grazing, relation between amount of damage and amount and character of 

 forage, comparison of the damage caused by sheep and other agencies, and 

 valuation of damage. Consideration is also given to the benefits of sheep 

 grazing to the forest and the management of grazing, both with reference to 

 the propei- utilization of the forage and the welfare of forest reproduction. 



Marketing farm timber in South Carolina, G. N. Lamb (Clemson Agr. Col. 

 S. C, Ext. Bui. J,l (1918), pp. 48, figs. 5). — This bulletin contains instructions 

 for estimating and marketing timber and other products of farm woodlands. 



[Report of the division of lands and forests] (Arm. Rpt. Conserv. Com., 

 N. Y., 8 (1918), pp. 97-140, pis. 6).— A report for the calendar year 1918 rela- 

 tive to the administration and management of the State forest preserves and 

 forest nurseries, parks, and reservations, including information relative to 

 work in reforestation, the control of the white pine blister rust, and foresl 

 fire protection. A report is also given of lumber, cordwood, and other products 

 obtained from the State forests during the calendar year 1917. 



Annual return of statistics relating to forest administration in British 

 India for the year 1916-17 (Static. Forest Admin. Brit. India, 1916-17. pp. :',. 

 pi. 1). — A statistical report relative to the administration and management of 

 tlie State forests of British India during the year 1916-17. Data relative to 

 area of forests under the control of the forest department, forest settlements. 

 surveys, working plans, forest fires, planting operations, yields in major and 

 minor forest products, principal exports, etc., are presented in tabular form. 

 Comparative data on revenue and expenditures are given for the 25 years 

 commencing 1892-93. 



Annual report on the forestry department for the year ended March 31, 

 1918, K. Fyffe (Ann. Rpt. Forestry Dept. Uganda, 1917-18, pp. 11).— A prog- 

 ress report of the administration, development, and improvement of the Uganda 

 Protectorate forest resources, including a financial statement for the year. 



DISEASES OF PLANTS. 



Some of the broader phytopathological problems in their relation to for- 

 eign seed and plant introduction, B. T. Galloway (Phytopathology, S (1918), 



