834 EXPERIMEXT STATION EECOED. 



As a result of these experiments it was found that by the judicious use of 

 fertilizers on the thin orchard soils of the hilly sections of southeastern Ohio 

 the vigor and fruitfulness of the trees is not only improved but the vegetation 

 beneath the trees becomes transformed from a scanty wild growth of native 

 weeds and poverty grass to an abundant growth of better grasses which, 

 annually cut and allowed to remain as a soil covering, is rapidly proving a 

 source of humus for the soil. No grass seed has been sown in any of these 

 experiments. 



The methods of propagation of the best varieties of perry pears, A. 

 Truelle {Les ilodes de Propagation dts ilciUcuns ^'aril.^t^s de Poitiers d Poir€. 

 Argentan: Emile Langlois, 1915, pp. 11). — In addition to a di.scus.sion of 

 methods of propagation, a list is given of some 84 varieties of cider pears of 

 French and of foreign origin, together with a selecte<l list of 15 of the more 

 important varieties, which includes analytical data showing the principal ele- 

 ments contained in a liter of juice of these varieties. 



Report on the cooperative fertilizer experiments with cranberries at 

 Whitesbog, Browns Mills, New Jersey, 1915, F. P. Schlatter (Proc. Amer. 

 Cranberry Growers' Assoc., 46 {1916), pp. 9-13, 15-19). — A general summary is 

 given of the results secured in 1915 in the cooperative fertilizer experiments 

 with cranberries being conducted under the direction of the New Jersey Experi- 

 ment Stations (E. S. R., 34, p. 150). The data secured from various plats 

 are presented in tabular form and discussed. 



Although no definite conclusions are drawn at this time, the results of the 

 work for the three seasons show that fertilizers have given an increased yield 

 in only one series of experiment-s, where the plats were located on a sandy 

 soil. In one series, which is located on deep mud or muck bottom soil, fer- 

 tilizers, excepting perhaps phosphorus-containing materials, have had a detri- 

 mental effect. Practically the same results were secured in a series of experi- 

 ments conducted on a deep mud soil underlaid with bog iron ore. 



The resistance of various gooseberry varieties against North American 

 gooseberry mildew and their behavior on treatment with sulphur, G. KocK 

 (Die M'iderslandsfuhigh-eit versrhiedener Staehelbeersortcn gegeniiber nord- 

 atnerikanischem Stachelbeennchltaii und ihr Verhaiien bei der Behandlung mit 

 Schwefel. Vienna: K. K. Pflanzenschutzstation [1914], PP- i)- — The author 

 enumerates some 100 varieties of gooseberries under observation and gives fur- 

 ther lists of those which were subject to mildew attack and those which suffer 

 from leaf fall upon being treated with sulphur. 



Strawberry culture, F. W. Jimenez {El Cultivo de la Fresa. Mexico: Goi't., 

 1914, rev. and cnh, pp. 27). — A popular treatise on strawberry culture with 

 special reference to Mexican conditions. 



Note on some determinations on the grapes of French-American and 

 American hybrid vines, F. C. Tobnello {Agr. Hod. [Milan], 22 (1916), No. S. 

 pp. 26-2S). — The author reports observations made on vines of six hybrid 

 species, conducted in the antiphylloxera nursery at Cerignola. The data given 

 show the yield of the different species, quality of the fruit, and relative pro- 

 portion of the juice, must, and residue, as well as the sugar, acid, and alco- 

 holic content of the must. 



Muscadine grapes, G. C. Husmann and C. Deaking (P. S. Dcpt. Agr., Farm" 

 ers' Bui. 709 (1916), pp. 2S, figs. 29). — A treatise on the Muscadine grapes with 

 reference to their botanical relation and classification, propagation, soils, plant- 

 ing, companion crops, cultivation, fertilization, pollination, pruning and train- 

 ing, harvesting and handling, yields and returns, uses, insect enemies and dis- 

 eases, breeding investigations, and general descriptions of the leading varieties. 



