652 experimp:nt station record. [Voi. 41 



lands in supplyinc; various war needs, and advocates tlie systematic improve- 

 ment of farm woodlands to meet the peace requirements of tlie Nation. 



[Progress report on forestry investigations] {Missouri Hta. Bui. 163 (1919), 

 p. 51). — Tlie fence post preservative test being conducted by E. C. Pegg con- 

 tinues to sliow the superiority of the open-tank method of treatment over r.ll 

 other methods (E. S. R., 38, p. 644). 



The basket willow tests were also continued. Thus far no regularity of yield 

 has been shown in relation to different methods of spacing. The problem of 

 sprouting has been worked out through the use of vats or tiinks. 



Progress report of forest administration in the Province of Assam for the 

 year 1917—18, A. W. Blunt and W. F. L. Tottenham (Rpt. Forest Admin. 

 Assam, 1917-18, pp. [82], pi. 1). — The usual report on the management and 

 exploitation of the forests of Assam for the year ended June 30, 1918. Im- 

 portant data relative to alterations in forest areas, forest surveys, working 

 plans, forest protection, miscellaneous work, yields in major and minor forest 

 products, revenues and expenditures, etc., are appended in tabular form. 



Progress report on forest administi-ation in Coorg for the year 1917—18, 

 H. TiREMAN {Rpt. Forest Admin. Coorg, 1911-18, pp. 2-\-lJf). — A report similar 

 to the above on the administration of the State forests in Coorg for the year 

 ended June 30, 1918. 



[Report on tree culture in the northern Nebraska sand hills], J. Cowan 

 {Nebraska Sta. Bui. 171 {1919), pp. 7, 8). — Growing trees in quantity, such as 

 is needed for groves and windbreaks on the dry sandy land of the region has 

 been one of the hardest and most expensive operations undertaken at the Valen- 

 tine substation. Bull pines raised from seed collected in the vicinity have done 

 better than any other variety of tree, but it is questionable whether they will 

 be long-lived. The probable cause of the trouble with both deciduous trees and 

 conifers is the shallow rooting habit induced both by shallow soil and moisture 

 near the surface during the growing season. Also in the case of deciduous 

 trees, borers attack every species grown at the substation. 



Afforestation: Its practice and science, M. C. Duchesne {Rpt. Brit. Assoc. 

 Adv. Sci., 1918, pp. 68-79). — A paper, with discussion following, in which the 

 author emphasizes the importance to Great Britain of an assured national 

 timber supply, and brings out the need for closer association of science with 

 practice in building up future timber reserves. 



Reafforestation with conifer trees, L. Breton-Bonnard {Le Rehoisement les 

 Risineux. Paris: J. B. BaiUiire d Sons, 1918, pp. 276, figs. 61).— A treatise on 

 reafforestation based primarily on the author's experiences. Introductory con- 

 siderations point out the importance of reafforestation projects to France. 

 Part 1 contains descriptive accounts of coniferous species and varieties recom- 

 mended for planting, part 2 contains cultural details, part 3 treats of insects 

 and diseases of conifer trees, and part 4 contains examples of returns from 

 conifer plantations. 



Effect of removing the pulp from camphor seed on germination and the 

 subsequent growth of the seedlings, G. A. Russell {Jour. Agr. Research 

 [V. .S'.], 17 {1919), No. 5, pp. 223-238, pis. 2, figs. 5).— A contribution from the 

 Bureau of Plant Industry, U. S. Department of Agriculture, describing germi- 

 nation tests conducted with camphor seeds to determine the cause or causes of 

 the low germination obtained both experimentally and commercially. The 

 results of the investigation are pro.-;ented in a series of tables and graphs and 

 fully discussed. 



Removing the pulp from the seed was found to hasten germination by an 

 average of two weeks ; it also gave an increase in germination of approximately 



