838 EXPERIMENT STATION RECORD. [Vol. 37 



count is given of seed selection studies of Hevea conducted under the direction 

 of the Ceylon Department of Agi-iculture. 



The effects of tapping and wintering' on the storage of plant food in 

 Hevea, A. A. L. Rutgers (Arch. RnbbercuU. Nedcrland. Indie, 1 {1917), No. 2; 

 Meded. Alg. Proefstat. Alg. Yer. Rubberplanters Oostkust Sumatra, Rubber 

 Ser., No. 1-2 (1917), pp. 1-8, pis. S). — A brief summary of investigations on 

 this subject conducted by Campbell and Bateson (E. S. R., 33, p. 543; 34. pp. 

 47, 240, 346). These authors are of the opinion that tapping should be stopped 

 from the moment the new leaves are coming out until a week after the crown 

 is full-grown. The reviewer, on the other hand, concludes that wintering takes 

 only one-sixth of the starch reserve at the most, and since tapping takes prac- 

 tically none from a physiological point of view there is no reason to stop 

 tapping during the winter. 



Bubber soils in Fiji, C. H. Weight (Dept. Agr. Fiji Pamphlet 26 {1917). pp. 

 2), — This pamphlet contains directions for distinguishing soils adapted for 

 rubber growing in Fiji. 



Annual progress report on forest administration in the Presidency of 

 Bengal for the year 1915-16, H. A. Fabrtngton {Rpt. Forest Admin. Bengal, 

 1915-16, pp. II+51+5). — This is the usual report relative to the administration 

 and management of the State forests of the Presidency of Bengal, including a 

 financial statement for the year 1915-16. All important data relative to altera- 

 tions in areas, forest surveys, working plans, forest protection, miscellaneous 

 work, yields, revenues, expenditures, etc., are appended in tabular form. 



Forest Service stumpage appraisals, J. W. Gibakd {Jour. Forestry, 15 

 (1917), No. 6. pp. 708-725). — This article deals with the appraisal of saw-log 

 material and the logging methods employed in Montana, Idaho, and northern 

 Washington. 



Marketing farm woodlot products in Maine. O. N. Lamb {Univ. Maine Ext. 

 Bui. lis {1917), pp. 58, figs. 5). — This bulletin, whic]t> is published in coopera- 

 tion with the Forest Service of the U. S. Department of Agriculture, dis- 

 cusses the woodlot situation in Maine; the common woodlot trees, including 

 their growth, uses, and properties; estimating standing timber and saw logs; 

 methods of selling timber; and the preparation and marketing of woodlot 

 products de.stincd for various industries. 



Crossties purchased and treated in 1915. A. M. McCbeight {U. S. Dept. Agr. 

 Bui. 5^9 {1917), pp. 8). — A statistical review for the year 1915. The total num- 

 ber of crossties bought by all classes of producers was approximately 121,- 

 402,611. Treating plants reported a total of 37,085,.'585 crossties treated in 1915. 



DISEASES OF PLANTS. 



Common and scientific names of plant diseases, M. B. Waite {Abs. in 

 Phytopathology, 7 {1917), No. 1, p. 60). — The author makes a plea for definite 

 common names for plant diseases which can attain proper status in discussions, 

 literature, dictionaries, quarantine regulations, laws, and legal proceedings. 



[Plant diseases in British Guiana], C. K. Bancroft {Rpt. Dept. Sci. «nd 

 Agr. Brit. Guiana, 191^-15, App. 2, pp. 7-10). — Besides a summary of organisms 

 causing di.seases of cultivated crops in the colony during three years, brief de- 

 tails are given of the South American leaf disease of Hevea {Fusicladiiim 

 maerosporum) ; the dry disease {Mara.wiius sacehari) and the ring spot 

 (Lcptosphwria sacchnrl) of .sugar cane; the fruit disease of mango and bread- 

 fruit {Glceosporium mangiferw) ; witches' broom of cacao; a di-sease of leaves 

 and fruit of the coffee plant due to a Colletotrichum {C. coffew f) ; the bacterial 

 disease of plantains; blast of rice {Piricvlaria oryzce) ; collar rot of lime; 



