1917] HORTICULTURE. 141 



including the history of the industry, varieties, culture, harvesting, and mar- 

 ketiiig. A paper on the More Important Insects and Diseases Attacking Peach 

 Trees (pp. 41-51), by L. Caesar and J. E. Howitt, is also included. 



The persimmon in California, S. Fujii (Mo. Bui. Com. Hort. Cal., 5 {1916), 

 No. 10, pp. 362-367, figs. 7). — A number of Japanese persimmons adapted for 

 culture in California are described. 



State bog' report, H. J. Fkanklin {Ann. Rpt. Cape Cod Cranberry Growers' 

 Assoc., 28 {1915), pp. 13-32). — A report on the work at the Massachusetts 

 state cranberry bog for the year 1915, the substance of which has been noted 

 from another source (E. S. II., 3G, pp. 43, 51, 54). 



Is the hybrid origin of the loganberry a myth? {Jour. Heredity, 7 {1916), 

 No. 11, pp. 504-507, fig. 1). — In this article some evidence is presented to show 

 that the loganberry has behaved on the whole as a true species rather than as 

 a hybrid of the blackberry and raspberry. 



Methods of reproducing grapes by long cuttings and short cuttings, P. J. 

 RicoME {Los Proccdimientos de Rcproduccion de la Vid, Estacas Largas y 

 Estacas Cortas. Lima, Peru: Govt., 1916, pp. 26, pis. 4)- — The author gives the 

 results of two years' experiments in reproducing grapes. Briefly summarized 

 the use of one-year cuttings completely covered in the ground gave the best 

 results in coastal Peru. 



Some recent operations and experiments with bud variations, A. D. Shamel 

 {Cal. Citrogr., 2 {1916), No. 1, pp. 14-16, figs. 3).— Essentially noted from other 

 sources (E. S. R., 34, p. 639). 



Pruning the Washington navel orange, R. W. Hodgson {Univ. Cal. Jour. 

 Agr., 4 {1916), No. 2, pp. 38-40, figs. 4)- — Ob.servations are presented on methods 

 of pruning Washington navel oranges, based upon the results of four seasons' 

 actual pruning and a study of the various pruning systems practiced by 

 growers. 



Report on manurial experiments {Imp. Dept. Agr. West Indies, Rpt. Agr. 

 Dept. Dominiea, 1915-16, pp. 14-28). — A progress report on manurial experi- 

 ments with cacao and limes in Dominica (E. S. R., 34, p. 438). The work 

 with limes continues to show satisfactory growth, accompanied by a substan- 

 tial increase in profit, on the complete manure plat as well as a slow but steady 

 improvement in the yield and general appearance of trees on the mulch plat. 

 The work with cacao continues to show a decided advantage over fertilizers 

 in favor of the mulch plats. 



[Cacao experiments, 1914-15], J. de Vebteuil {Bui. Dept. Agr. Trinidad 

 and Tobago, 15 {1916), No. 4, pp. 111-142, pis. 9).— This is the usual progress 

 report for the year ended August 31, 1915, relative to manurial, shade, pruning, 

 and natural yield exi^eriments being conducted in a number of plantations in 

 Trinidad (E. S. R., 33, p. 738), including also data on manurial experiments 

 with cacao and rubber in Tobago. No conclusions have thus far been drawn 

 from the work as a whole. With reference to natural yield experiments it has 

 been observed, generally speaking, that the heavy bearing trees of the first 

 year have continued to be heavy bearers, and that the poor-yielding trees have 

 remained poor during subsequent years. 



Cacao, J. E. van der Laat {Pub. Dept. Agr. Costa Rica No. 4 {1916), pp. 23).— 

 A practical treatise on the cultui-e and preparation of cacao for market. 



[Experiments with coffee in Surinam], E. van Drent {Dept. Lamlb. 

 Surinam e Verslag, 1915, pp. 50-61).— The various species of coffee being tested 

 at the Government Culture Garden are listed, and data are given on the yields 

 during 1915 of the various trees of Uganda, Canephora, Quillou, and Excelsa 

 coffee being tested. 



