1019] HORTICULTURE. 149 



rentage started to form between July 20 and August 10. Tlie fruit bud forma- 

 tion nil individual trees is closely correlated with the growth of the trees. 



Twenty years of fertilizers in an apple orchard, K. I >. Amiiony (Proo. 

 N. v. State Fruit Growers' Assoc, n (1918), pp. 210-218).— This paper com- 

 prises a shorl reporl of the present status of the long-continued orchard fer- 

 tilizer experiment being conducted at the New York State Experiment Station 

 (K. s. u., J.'), p. 643). 



As a resull of 19 years of fertilization, it is concluded that the application 

 of a complete fertilizer has Increased the yields somewhat, but that nearly as 

 good results have been secured when the nitrogen was omitted and only phos- 

 phoric acid and potash used. The increase* have amounted even in the most 

 favorable cases only to about a bushel per tree per year since the orchard had 

 its first commercial crop. It is pointed out that these gains are not sufficient 

 to pay the charges, especially with present prices for labor and fertilizers. 



The effect of cross-pollination on size, color, shape, and quality of the 

 apple, W. II. Wicks (Mo. Bui. Col. Com. Hort., 7 {1918), Xo. 10, pp. 5i;s~:n.1).— 

 A summary of the author's Investigation previously noted in full (E. S. K., 39, 

 p. 646). 



Status of commercial apple growing in Virginia, It. E. Marshall (Ya. 

 Polytech. Inst. Ext. Bui. k0 (191S), pp. 15, figs. 6). — This comprises the results 

 of a census of the commercial apple industry of Virginia, taken in 1918 under 

 the direction of the extension division of the Virginia College. Tabular data are 

 given showing the number of trees by counties and by important varieties. There 

 are approximately 2,lSr),000 commercial appie trees of different ages in the 

 Slate. 



Peach growing, II. P. Gould (A r cir York: The Mannillan Co., 1918, pp. XXI + 

 426, pis. 32, figs. 19). — A treatise on the principles and practice of peach pro- 

 duction, the introductory chapters of which deal with the introduction of the 

 peach into America and the economic status and extent of the peach industry. 

 The succeeding chapters discuss location and site of the orchard; propagation 

 of peach trees ; details of planting an orchard ; orchard management ; the tillage 

 of peach orchards; interplanted crops; fertilizers for peach orchards; pruning 

 peach trees; insect and disease control; thinning the fruit; Irrigating poaches; 

 a consideration of adverse temperatures ; annual cost factors in growing peaches ; 

 peach varieties, botany, and classification; picking and packing the fruit; and 

 transportation, storage, and marketing. 



Storage of grapes, P. Thayer (Mo. Bui. Ohio Sta., 3 (1918), Xo. 10, pp. 315- 

 317). — For several seasons a test has been conducted at the station to see 

 what varieties of grapes are best adapted for storage. Notes are given on the 

 behavior under storage of some 22 varieties which were selected for the test 

 by reason of lateness of ripening, firmness of flesh, or toughness of skin. Of 

 these Wilder appeared to be the best for storage and Llndley was very good. 

 Other varieties adapted for storage were Agawam, Diana, Gaertner, Hernito, 

 Iona, Salem, Vergennes, and Xenia. 



The experiment indicated that a uniform temperature of about 40° F. would 

 be the optimum, since cold storage seems to increase the amount of shattering 

 and in some cases to injure the flavor. The fruit should be mature and free 

 from disease, picked when dry, and handled carefully to avoid cracking. It 

 should be stored on shelves or in trays in shallow layers in an atmosphere with 

 a reasonable amount of humidity. 



Smyrna fig culture, G. P. Rixfokd (U. S. Dcpt. Agr. Bui. 732 (191S). /»/-. )■'. 

 figs. 12). — A treatise on Smyrna fig culture, dealing with the extent and origin 

 of the industry, introduction of Smyrna figs into the United States, classjflca- 



