644 BXPERIMEITT STATTON RECORD. 



value as an additional stocli for oranges is suggested. Although no hybrids 

 of Citropsis and Citinis have been secured as yet, it has been demonstrated 

 that Citrops^is schweinfurtkii will pollenize the flowers of the common lime 

 {Citrus aurantifolia) and breeding experiments are now being carried on by 

 using the pollen of Citropsis on as many species of Citrus as possible. 



Citriculture in the Philippines, P. J. Westeb (PhiUppine Bur. Agr. Bui. 27 

 {1913), pp. 71, pis. 21, figs. 22; abs. in Philippine Agr. Rev. [English Ed.'], 6 

 {1913), No. 10, pp. 471-Jf92, figs. 9). — A popular treatise on citrus culture with 

 special reference to Philippine conditions. The important phases discussed 

 Include geographical distribution and botany, citrus fruits cultivated in the 

 Philippines, recent introductions, propagation, field culture, windbreaks, harvest- 

 ing and marketing, plant parasites, diseases, and insect pests and their control. 



Cacao culture, O. W. Barkett {Philippine Agr. Rev. [English Ed,], 7 {1914), 

 No. 1, pp. 5-15, figs. 4)' — ^ brief popular treatise on cacao culture in which 

 consideration is given to locations, soils, seed selection, transplanting, culture, 

 pruning, harvesting, fermentation, and pests and diseases. 



The buddag-e of cacao, P. J. Wester {Philippine Agr. Rev. [English Ed.], 7 

 {1914), No. 1, pp. 27-33, pis. 2). — Popular directions are given for shield budding 

 cacao trees. 



Manurial experiments on coconuts, 1912—13, J. de Veeteuil {Bui. Dept. 

 Agr. Trinidad and Tobago, 13 {1914), No. 77, pp. Jf-7).— This report deals with 

 the second year's results of the cooperative manurial experiments on coconuts 

 under the control of the Trinidad Board of Agriculture (E. S. R., 29, p. 746). 



Studies in Juglans. — I, Study of a new form of Juglans californica, E. B. 

 Babcock {Univ. Gal. Pubs. Agr. Sci., 2 {1913), No. 1, pp. 46, pis. 12).— The 

 author here describes a new form of walnut, J. californica quercina, which has 

 appeared on seven separate occasions among seedlings of at least three different 

 trees of J. californica. 



In studying the nature and origin of this new form of walnut the follovrlng 

 three working hypotheses have been retained : Hybridization, teratology, and 

 mutation. In connection with the hybridization study, seedlings of J. cali- 

 fornica pollinated with three species of oak have been secured and will be 

 further observed as to their possible hybrid nature. Thus far no definite conclu- 

 sions are drawn from the investigation. 



Multiplication of floral parts in the carnation, O. H. Connors {Amer. 

 Florist, 42 {1914), No. 1343, pp. 272-275, figs. 16).— A study of the teratology of 

 the carnation as observed in seedling forms resulting from crosses made by 

 D. M. Jobbins at the New Jersey State Station. The variations are dis- 

 cussed under the following headings: Calycanthemy, phyllody, prolification, 

 petalody of the pistils, and pleiotaxy of the andrcecium and petalody of the 

 stamens. 



Report on the plantations at Amani {Pfianzer, 10 {1914), No. 1, pp. 42-56). — 

 This comprises brief notes on the various economic plants under observation at 

 the Amani testing gardens. 



Garden craft in Europe, H. I. Triggs {London and New York, 1913, pp. 

 XI +332, pis. 16, figs. 295). — The successive chapters of this work, which deals 

 with the development of ornamental gardening in Europe, discuss ancient gar- 

 dens in Europe, the gardens of the Middle Ages, the Italian garden, French 

 gardens of the sixteenth and early seventeenth centuries. La Notre and Ver- 

 sailles, French gardens of the later seventeenth and eighteenth centuries, garden 

 designs in the Netherlands, English gardens of the sixteenth, seventeenth, and 

 eighteenth centuries, German and Austrian gardens, garden design in Spain, 

 and the English landscape school and its influence on the Continent. 



A bibliography of selected works on Euroi)ean garden design is appended. 



