1919] POBBSTBY. 841 



single flowering character, The majority of the double flowering sorts were 

 without this oectar tube At attempt to hybridize difflerenl speciea met with 

 l.in little success. Hybrids of the zonal group and the Ivy-leafed sections are 

 qoI very fertile. The Lady Washington type will combine with some of the 

 scented-leaved types, but the zonals will not hybridize with either the show ><r 

 the scented-leaved groups. 



After a three years' it-t it was detennined that leaf spot in geraniums can he 

 almosl completely prevented by keeping the foliage dry. There was a marl 

 variation in the ability of the varieties studied to resist Leaf spot when grown 

 in the open ground. Most of the varieties extensively used for bedding show a 

 marked resistance to it, Indicating special selection with relation to this 



disease. 



FORESTRY. 



Influences of the National Forests in the southern Appalachians, \V. L. 

 Hall (Jour. Forestry, 11 (1919), No. 4, pp. 402-401).— The author rHomifflCll the 

 inlluences at present discernible on local population, local improvements, 

 and local industries which use wood as a material, and on forest management 

 in the region in which the National Forests are located. 



A program of forest conservation for the South, J. G. Peters (Jour. I or- 

 estry, 11 (1919), No. 4, pp. 364-310).— A paper on this subject read before the 

 Washington section of the Society of American Foresters, February 13, 1919. 



Some aspects of silvical research as an after-the-war activity, C. Ia.wnr 

 (Jour. Forestry, 11 (1919), No. 3, pp. 213-280 ) .—The author brielly outlines sil- 

 vlcultural studies that are being conducted in eastern Canada, and calls atten- 

 tion to the need of pursuing similar studies in the recently created National 

 Forests and at selected experiment stations in the eastern United States. 



Forestry and the war in Italy, N. C. Brown (Jour. Forestry, 11 (1919), No. 

 4, pp. -'(08-412). — A brief survey of the present status of forests and forest ac- 

 tivities in Italy. 



Forest survey. — Third annual report, 1918, G. H. Prince (Ann. Rpt. Crown 

 Land Dcpt. New Brunswick, 58 (1919), pp. 14-121, pis. IS). — A progress report 

 of the forest survey of the Crown Lands of New Brunswick for the year ended 

 October 31, 1918. A total of 1,660,000 acres, or about 22 per cent of the Crown 

 Lands, have been classified. 



Tropical reconnaissance with special reference to work in the Philippines 

 and British North Borneo, D. W. Matthews (Jour. Forestry, 11 (1919), No. 4, 

 pp. 311-311). — A brief review of the present status of forest reconnaissance in 

 the Philippines and British North Borneo. 



Observations on unburned cut-over lands in the Adirondacks, E. F. Mc- 

 Carthy (Jour. Forestry, 11 (1919), No. 4, PP- 386-391, figs. 2).— Results are 

 given of a study, conducted under the direction of the New York State Colh 

 of Forestry, of 6tand and reproduction on unburned cut-over lands in the 

 Adirondacks. 



Thunder Mountain, H. S. Graves (Amer. Forestry, 25 (1919), No. 303, pp. 

 901-911, figs. 9). — The author describes the present devastated condition of 

 Thunder Mountain in central Idaho as a striking illustration of the pool 

 policy of leaving public lands unprotected and subject to the abuses of un- 

 regulated grazing of sheep. 



Conifer additions to shelter belts on the northern Great Plains ( U. B. Depft. 

 Agr., Bur. Plant Indus., 1919, pp. 6).— This circular points out the desirability 

 of adding evergreens to shelter-belt planting in the northern Great Plains, and 

 gives the terms of a proposed cooperative plan for establishing demonstration 



