1917] HORTICULTURE, 743 



given relative to tlie possibilities of improving various tropical fruits and meth- 

 ods of growing them. 



The navel orange of Bahia; with notes on some little-kxiown Brazilian 

 fruits, P. H. DoRSETT, A. D. Shamel, and W. Popenoe {U. S. Dept. Agr. Bui. 

 445 (1917), pp. 35, pis. 24, fig. 1). — In addition to an account of the origin, his- 

 tory, and culture of the navel orange of Bahia, together with the introduction 

 of the Washington navel orange of Bahia into the United States, notes are 

 given on other citrus fruits and miscellaneous fruits grown at Bahia, citrus 

 fruits and other fruits growing In the region around Rio de Janeiro, and fruits 

 of the highlands and semiarid regions of Minas Geraes and Bahia. Compara- 

 tive analyses of navel oranges grown at Riverside, Cal., and at Bahia, Brazil, 

 made by H. C. Gore, are included. 



The use of commercial fertilizers, J. F. Bbeazeau; (Cal. Citrogr., 2 (1917), 

 No. 5, pp. 4, 5). — A popular discussion of some of the fundamentals of fertilizer 

 practice, with special reference to citrus groves. 



The pomegranate, R. W. Hodgson (California Sta. Bui. 276 (1917), pp. 163- 

 192, figs. 15). — An account of the pomegranate with reference to its range of 

 culture in the United States, history, botany, horticultural varieties, climatic 

 requirements, propagation, soils, orchard management, yields, returns, uses, dis- 

 eases, insect pests, and other troubles. 



Planting pecans, budding, grafting, and transplanting pecan trees, J. A. 

 Evans (Tex. Agr. Col. Ext. Sew. Bui. B-85 (1917), pp. 32, figs. S).— Practical 

 instructions on budding, grafting, planting, and transplanting pecans are given, 

 including information relative to varieties adapted to different sections of the 

 State. 



Profitable herb growing and collecting, Ada B. Teetgen (London: Country 

 Life, 1916, pp. XI-\-lSO, figs. 16). — A compilation of information gleaned from 

 publications issued by departments of agi'iculture in different countries concern- 

 ing the culture, yield, profitable marketing, and kinds of medicinal plants and 

 herbs. 



Observations and experiments in poppy culture and the production of 

 opium in the Province of Valladolid, Spain, C. Benaiges de Aeis (Bol. Agr. 

 T4c. y Econ., 9 (1917), No. 97, pp. 55-63). — Notes on poppy and opium produc- 

 tion in general, including experimental results obtained on the Valladolid Farm. 



The dahlia, L. K. Peacock (Berlin, N. J.: Peacock Dahlia Farms [1917], 5. 

 ed., pp. 80, pi. 1, figs. 62). — A practical treatise on the habits, characteristics, 

 cultivation, and history of the dahlia, including also descriptive lists of 

 varieties. 



Parks: Their design, equipment, and use, G. Burnap (Philadelphia and 

 London: J. B. Lippincott Co., 1916, pp. 328, pi. 1, figs. 167). — A treatise on the 

 principles of park design, comprising as a whole a guide for town and city 

 officials intrusted with the development and maintenance of parks, a reference 

 work for landscape architects and superintendents in designing parks, and a 

 general work for the enlightenment of the public. The principles of design 

 are here illustrated by photographs of parks in various cities and countries. 



The successive chapters discuss park design in city planning, bringing up a 

 park the way it should go, principles of park design, " passing-through " parks, 

 neighborhood parks, recreation parks, playgrounds in parks, efl5gie.s and monu- 

 ments in parks, architecture in parks, decorative use of water, planting design 

 of parks, park administration in relation to planting design, seats in public 

 parks, disposition of flowers in parks, and park utilities. 



The food garden, W. F. Rowles (London: Eeadley Bros. [1917], pp. 324, 

 pis. 28, figs. 50). — A manual on the culture and conservation of fruits and vege- 

 tables, with special reference to the home garden and greenhouse. 



