840 EXPERIMENT STATION RECORD. [Vol.86 



produced by dried blood + acid phosphate + high grade sulphate of potash was 

 not increased by the addition of lime. The addition of lime alone to the soil 

 produced a growth greater than that produced by the above-named acid com- 

 bination, but not so large as that produced by this combination plus lime. 



The results secured in the field soil experiments conducted in 191.5 were not 

 parallel with those secured in 1914, practically all the fertilizer plats in 1915 

 showing a better growth than the check plats, whereas in 1914 the majority 

 of the fertilizer combinations produced less growth than the check plats. Thin 

 is attributed largely to the fact that the experiments were conducted at different 

 times of the year. The results for the two years are here presented without 

 discussion. The work is to be continued. 



A comparison of some citrus conditions in Plorida, Cuba, and California, 

 H. S. Fawcett {Mo. Bui. Com. Hort. Cal., 5 (1916), No. 9, pp. 321-SS7, figs. 

 10). — In this article the author briefly discusses some of the differences in 

 horticultural conditions and practices in California, Cuba, and Florida, with 

 special reference to citrus culture. 



Citrus trees, T. W. Bkown and L. H. Gough {Cairo: Min. Agr. Egypt, 1915, 

 pp. 19, pis. 4)- — This paper contains instructions for the cultivation and man- 

 agement of citrus trees, together with notes on insect pests found attacking 

 such trees and methods of control. 



Report on the work of the Malang Experiment Station for 1915, T. Wukth 

 (Meded. Proefstat. Malang, No. 12 {1915), pp. 23). — A progress report on in- 

 vestigations dealing largely with rubber and coffee. 



Keeping chestnuts over winter {Amer. Nut Jour., 5 {1916), No. 4, pp. 43, 

 52). — This note describes methods employed by three different nut growers in 

 carrying seed chestnuts through the winter. 



Studies in Juglans. — III, (a) Further evidence that the oak-like walnut 

 originates by mutation, (b) A parallel mutation in Juglans hindsii, E. B. 

 Babcock {Univ. Cal. Pubs. Agr. Sci., 2 {1916), No. 3, pp. 11-80, pis. 2).— In this 

 paper the author presents further evidence to show that the oak-like walnut 

 {J. calif omica quercina) originated as a mutant from J. calif ornica rather than 

 as a hybrid between the walnut and oak (E. S. R., 32, pp. 46, 338). A parallel 

 mutation in J. hindsii is also discussed. 



Drug plant culture in 1916, W. W. Stockbergeb {Jour. Amer. Phartn. Assoc, 

 5 {1916), No. 10, pp. 1068-1075, figs. 5).— A paper on this subject read before the 

 scientific section of the American Pharmaceutical Association at Atlantic City, 

 in 1916. 



Roses for the home, F. L. Mulford {U. S. Dept. Agr., Farmers' Bui. 150 

 (1916), pp. 36, figs. 21). — A general treatise on rose growing for pleasure and 

 for the beautification of the home grounds. Roses for the lawn, border, arbor, 

 trellis, cutting, and other ornamental purposes are considered with reference to 

 varieties, soil preparation, methods of planting, and training. Consideration is 

 also given to methods of propagation and insect remedies. A section on the 

 fungus diseases of roses, prepared by Flora W. Patterson, is included. 



Shade trees, hardy shrubs, roses, perennials, and other ornamental plants 

 recommended for Maine, C. L. Wilkins and S. H. Eaton {Bui. [Mainel Dept. 

 Agr., 15 {1916), No. 3, pp. 33, pi. 1, figs. 6). — A descriptive list of ornamental 

 plants which the authors have found through years of experience and observa- 

 tions to be adapted to Maine conditions. 



Pruning shade trees, H. F. Major {Missouri Sta. Circ. 81 {1916), pp. 6, 

 figs. 3). — A popular circular discussing reas(ms for pruning, pruning with 

 reference to tree structure, and varieties of trees adapted for planting on lawn 

 and street 



