840 EXPERIMENT STATION KECOED. 



Some new fruits, N. E. Hansen (South Dakota Sta. Bui. 130, pp. 163-200, 

 figs. IS). — In continuation of ijrevious reports (E. S. R., 20, p. 239) the records 

 of a number of promising hybrids secured in the author's breeding worlc with 

 stone fruits are brought up to date. In addition to descriptive notes an alpha- 

 betical list is given of both the pure native plums and the new hybrid plums, 

 showing the English meaning of the Indian names, pedigree, and year of intro- 

 duction. Reference is also made to the work of improving native plums and 

 sand cherries through selection. 



Although sufficient time has not elapsed for a final report as to their relative 

 value, the author gives as a guide to the fruit grower and nurseryman his 

 estimate of the best varieties of each class of hybrids. These include varieties 

 secured from the following crosses: Native plum X Chinese Apricot plum 

 pollen, Japanese plumXDe Soto plum pollen, and crosses of the western sand 

 cherry with pollen of the Gold, Sultan, De Soto, Chinese Apricot, and Persian 

 Purple-leaved plums. 



Investig-ations on the mortality of plums, E. Rabate {Prog. Agr. et Vit. 

 (Ed. FEst-Centre), 32 {1911), Nos. 33, pp. 197-202; 34, pp. 2U-222).—An 

 investigation into the cause of the rapid dying out of plum trees in certain 

 plantations of Lot-et-Garonne, France, is reported. The author concludes that 

 the rapid mortality of the trees is caused either by asphyxiation of the roots 

 in soil saturated with stagnant water or through the underground action of 

 root rot, or by a combination of these causes, the former being more prevalent. 

 Methods of treating this trouble adapted to different soil conditions are 

 suggested. 



Results of experimental plantings with, grapes g'rafted on American 

 stocks at the Wadenswil Experiment Station, H. Schellenberg {Landw. 

 Jahrl). Schweiz., 25 {1911), No. 4, pp. 277-288) .—The data here presented indi- 

 cate that with the judicious selection of American stocks no serious difficulty 

 will be encountered in the reconstitution of the vineyards in German-Switzer- 

 land. 



American grape stocks of the varieties selected for further trial by the 

 Prussian experiment stations, F. Schmitthenner {Landw. Jahrh., J/O {1911), 

 Erganzungsh. 2, pp. 1-76, jjIs. 12, fig. 1). — Detailed descriptions are given of 18 

 grape stocks, including pure American species and America-American and 

 Franco-American hybrids which are considered worthy of further trial in the 

 reconstitution of German vineyards. 



Report of the grape grafting station Geisenheim-Eibingen, Fischer et al. 

 (.Ber. E. Lehranst. Wein, Ohst u. GartcnMu Geisenheim, 1910, pp. 195-232, 

 figs. 4). — This report embraces a record of the grafted varieties in the experi- 

 ment station, observations on the various graft stocks employed, notes on 

 hybrids, grafting experiments, etc. 



In a preliminary experiment in the use of Nitragin in the nursery soils, 

 Nitragin in combination with phosphoric acid and potash gave the best results, 

 and Nitragin used alone gave better results than the check plat. 



Report on the activities of the Royal American Grape Nursery in Asti 

 for the period 1901 to 1910, G. Peesi {Boh Min. Agr., Indus, e Com. [Rome], 

 10 (1911). Scr. C, No. 8, pp. 13-32, figs. 3).— This consists of a review of opera- 

 tions conducted at the grape nursery established in Asti for the propagation, 

 study, and dissemination of American vines. During the 10-year period under 

 discussion over 2.000,000 grafted plants and over 200,000 cuttings consisting 

 largely of Riparia and Rupestris. together with hybrids of these 2 species, have 

 been distributed in various Provinces of Italy. 



Report of the enological station of Haro for 1910, V. C. M. de ZMiga 

 {Estac. Enol. Haro Mem., 1910, pp. 151, pi. 1). — As in previous years (E. S. R., 



