HORTICULTURE. 43 



The practice of ^ape growing in its various phases. — I, The technique of 

 grape grafting, A. Wannee (Die Praxis des Weinhaus in Einzeldarstellungen. 

 I, Die Tecknik der Rebenvered clung. Strasshurg, 191S, pp. 83, figs. 53). — A 

 practical treatise on the propagation and grafting of grapes, including the care 

 of the grafted plants in the nursery. 



Study of the influence of various grape stocks on the quality and quantity 

 of the harvest, H. Faes and F. Porchet (Terre Vaud., 5 {1913), Nos. 18, pp. 

 191-193, fig. 1; 19, pp. 20Jf, 205, fig. 1; 20, pp. 211-213, figs. 2; 21, pp. 227-229, 

 figs. 2; 22, pp. 245-2Jf7, figs. 2; 24, pp. 265-268, figs. 2; 26, pp. 285-288, figs. S; 

 28, pp. 301-810, figs. 3; 31, pp. 335-338, figs. 4; 53, pp. 351, 352).— In order 

 to determine the adaptability of a number of pure American, American hybrid, 

 and French-American Jjybrld stocks for the Chasselas grape 9 experimental 

 vineyards were established under the direction of the Lausanne Viticultural 

 Station. The results of this investigation as indicated by the quality and 

 quantity of the harvest in 1911 and 1912 are here reported and discussed. 



The sexual elements of grape hybrids, M. Gabd {Gompt. Rend. Acad. Sci. 

 [Paris], 157 (1913), No. 3, pp. 226-228) .—The author's investigations lead him 

 to conclude that the deviations from normal in the sexual elements of grape 

 hybrids are courmed to the male flower, the female flower remaining normal. 

 Among European cultivated grapes the pollen is oftentimes normal, and at 

 other times normal, hollow-grained, and intermediate forms of pollen occur on 

 the same plant, but the normal grains are usually the more numerous. Pollen 

 from short stamens, although not infertile, is incapable of close fertilization. 



Report on the variability of the coffees grown in the Dutch East Indies, 

 P. J. S. Cramer (Meded. Dept. Land}). [Dutch East Indies], 1913, No. 11, pp. 

 XVI -^696, pis. 23, figs. 5). — This comprises a comparative study of the varieties 

 of coffee commonly grown in the Dutch East Indies, Including also observa- 

 tions on recently introduced forms. Introductory considerations deal with the 

 present status of coffee culture and varieties in Java, the introduction of new 

 sorts for cultural tests, variability, comparative characteristics of different 

 kinds of coffee, seed tests, and the methods followed in the descriptions of the 

 parent trees. 



Part 2 discusses in detail the varieties of Coffea arahica, including small- 

 leaved, colored, erect, pendulous, and the strong-growing forms. The species 

 discussed in the succeeding parts include C. lihcrica, C. abeokutae, G. steno- 

 phylla, G. excelsa, C. ugandae, and C. congensis. 



First report on selection tests of Bobusta coffee, C. J. J. Van Hall (Meded. 

 Proefstat. Midden-Java, 1912, No. 7, pp. 23). — With the view of securing an 

 Improved form of Robusta coffee, a large number of plants were studied with 

 reference to variations in productivity, disease resistance, weight of marketable 

 product as compared with yield, and quality of the berry. The results of this 

 test are here presented in tabular form and discussed. 



On the tarring of pruning-wounds in tea plants, C. Bernard and J. J. B. 

 Deuss (Dept. Landb., Nijv. en Handel [Dutch East Indies], Meded. Proefstat. 

 Thee, 1913, No. 25, pp. 1-8). — In a preliminary test of various tar preparations, 

 black gas house tar gave the most satisfactory results as a dressing for wounds 

 resulting from pruning tea plants. 



Tea manuring experiments, C. Bernard and J. J. B. Deuss (Dept. Landb., 

 Nijv. en Handel [Dutch East Indies], Meded. Proefstat. Thee, 1913, No. 25, pp. 

 9-26, figs. 7). — Some fertilizer investigations with tea in Java are here reported 

 and discussed. 



Leucasna glauca as a green manure for tea, C. Bernard (Dept. Landb., 

 Ifijv. en Handel [Dutch East Indies], Meded. Proefstat. Thee, 1913, No. 25, pp. 



