444 EXPERIMENT STATION RECORD. 



Commercial strawberry culture, S. B. Shaw (Bui. N. 0. Dept. Agr., $4 

 (1913), No. 8, pp. 24, figs. 14). — A practical treatise on strawberry culture in 

 North Carolina, based on investigations conducted on the Pender Test Farm 

 and throughout the commercial strawberiy sections. A chapter on strawberry 

 insects, by F. Sherman, Jr., is included. 



Manurial experiments on cacao, 1912-13, J. de Veeteuil (Dept. Agr. 

 Trinidad and Tohago Bui., 12 (191S), No. 76, pp. 205-216) .—This report con- 

 tains yield data for the year ended August 31, 1913, for manurial experiments 

 which are being conducted on a number of private cacao plantations. Data 

 were also secured on the natural yield of plats on 8 cacao estates situated in 

 different parts of the island with the view of determining what factor or fac- 

 tors other than manures affect the yield of cacao trees. The results, as here ' 

 tabulated, indicate that the yield of a group of cacao trees forming a plat 

 is susceptible to very large variations and that the yield tendencies on 

 any particular plat should be well known before manurial experiments are 

 undertaken. 



California citrus culture, A. J. Cook (Sacramento, Cal.: State Com. Hart., 

 1913, pp. 121, figs. 68). — ^A practical treatise on the establishment, culture, and 

 management of citrus groves in California, including information relative 

 to various citrus diseases and insect pests and their control, methods of mar- 

 keting, etc. 



An extensive bibliography on citrus fruits is appended. 



Date cultivation in the Punjab, D. SIilne (Lahore, Brit. India: Govt, WIS, 

 pp. Ill +20, pis. 7). — A practical treatise based upon the author's observations 

 in Egypt and India and on the literature of date culture in various countries. 



The palms of British India and Ceylon, indig-enous and introduced, E. 

 Blatter (Jour. Bombay Nat. Hist. Soc, 20 (1910), Nos. 1, pp. 33-64; 2, pp. 

 347-360; 20 (1911), Nos. 3, pp. 675-705; 4, PP- 981-995, 21 (1911), No. 1, pp. 

 66-86; 21 (1912), Nos. 2, pp. 343-391; 3, pp. 912-968; 22 (1913), No. 1, pp. 

 67-86, pis. 50, figs. 31). — This comprises a series of descriptive articles on the 

 native and introduced palms of British India and Ceylon. In addition to a 

 detailed botanical description each species is considered with reference to its 

 bibliography, nomenclature, distribution, and habitat, together with the culti- 

 vation and uses in the case of economic species. An extensive bibliography on 

 palms is included in the introductory chapter. The text is fully illustrated. 



The selection of the tea plant, C. Beknabd and P. van Leersum (Dept. 

 Landb., Nijv. en Handel [Dutch East Indies], Meded. Proefstat. Thee, 1913, 

 Nos. 21, pp. 30, pis. 12; 26, pp. 15, pis. 4). — In continuation of previous tests 

 relative to the germination of tea seed selected according to its specific gravity 

 in water and in sugar solutions (E. S. R., 24, p. 41), the results to date are 

 here reported of a test of various types of Assam tea, including imported types 

 and those grown in Java from Assam seed. 



Observations of the young plants have shown that seed which sinks in water 

 produces more vigorous plants than seed which floats in water, and that the 

 most vigorous plants are produced from seed which sinks in a 25 per cent sugar 

 solution. Favorable results have been secured against troubles in the seed bed 

 by disinfecting the seed with corrosive sublimate solution. The selected plants 

 have been budded on thrifty stocks for further observation. 



Green manuring, G. D. Hope and A. C. Tunstall (Indian Tea Assoc., Sci. 

 Dept. Quart. Jour., 1912, No. 4, pp. 99-103, pi. 1; 1913, Nos. 1, pp. 22-25; 2, pp. 

 43-47, pJ- 1> S, pp. 73-78). — A series of articles comprising a general discussion 

 of the subject of green manuring, including notes and data on the use of various 

 coyer crops for manuring tea. 



