1916] HORTICULTURE. 743 



this agreeiug with the results obtained at the New York State Station rehitive 

 to high yields from first generation hybrid tomato plants (E. S. R., 27, p. 239 1, 



The control of fruit pests and diseases, A. L. Melander and F. D. Heald 

 (Washington Sta. Popular Bui. 100 (1916), pp. 5-6i).— This describes the more 

 important insect and animal pests and diseases of fruits and gives directions for 

 their control, including information relative to the preparation of insecticides 

 and fungicides. 



Piping system for orchard spraying, G. P. Weldon (Mo. Bui Com. Hort. 

 Cal., 5 (1916), No. 8, pp. 273-277, figs. 3).— A descriptive account with illustra- 

 tions is given of an underground orchard piping system which was laid out in a 

 California orchard for use in spraying the orchard. 



The development of fruits for special conditions, W. T. Macoun (Trans. 

 Mass. Hort. Soc, 1916, pt. 1, pp. 39-57). — A review of American activities in 

 the development of hardy fruits, including suggestions for further breeding 

 along this line. 



Pollinating fruit trees, L. G. Corrie (Jour. Heredity, 7 (1916), No. 8, pp. 

 365-369, fig. 1). — In this paper the author discusses various problems connected 

 with the failure of trees to set a crop, and summarizes the results of some 

 long-continued pollination trials conducted at the John Innes Horticultural 

 Institution at Merton, Suri'ey, England. 



The newer fruits in 1915 and how secured, N. E. Hansen (Minn. Hort., 44 

 (1916), No. 8, pp. 307-312, figs. 2). — In this paper the author notes the propaga- 

 tion in 1915 of two new plums that have borne several excellent crops, and 

 summarizes his recent endeavors in the line of breeding pears resistant to both 

 cold and blight. 



Two hardy species of pears, Pyrus ovoidea and the birch-leaved pear (P. 

 betulifolia), have been hybridized with many of the best cultivated pears of 

 Europe and have been distributed for testing purposes. 



The cherries of Japan, E. H. Wilson (Pubs. Arnold Arboretum, No. 7, Sup. 

 (1916), pp. III). — In view of the appearance of Miyoshi's work on the cherries 

 of Japan (E. S. R., 25, p. 645), which antedated the author's work (E. S. R., 35, 

 p. 343) but was not received in time for consultation, the author here presents 

 a supplement to his work containing a number of changes in nomenclature 

 made to conform to the nomenclature of Miyoshi. 



Harvesting and packing peaches, W. B. Lanham (Agr. and Mech. Col. Tex. 

 Ext. Bui. B-22 (1916), pp. 8, figs. 8). — Practical directions are given for picking, 

 grading, and packing peaches, with special reference to the use of the Georgia 

 carrier. 



Pyronia, L. Trabut (Jour. Heredity, 7 (1916), No. 9, pp. 416-419, figs. 2).— 

 The pyronia (Cydonia veitchii), a hybrid which is said to be the first between 

 the pear and quince, is here described and illustrated. The tree, which is 

 growing at the botanic garden in Algeria, produces an abundance of seedless 

 fruit of some value. The possibilities to plant breeders of using these two 

 species for breeding other desirable fruits are pointed out. 



The marketing of New York State peaches (New York: New York Central 

 Lines, 1916, pp. 16, figs. 9). — The purpose of this pamphlet is to present definite 

 information to peach growers and shippers of western New York relative to 

 methods of marketing and distribution. The subject matter is based upon the 

 shipping records of the New York Central and Hudson River Railroad Co. and 

 information compiled from the 1915 Market News Letters of the Office of 

 Markets and Rural Organization of the U. S. Department of Agriculture. 

 Methods of improvement in the marketing of the 1916 peach crop are herein 

 outlined. 



