52 EXPERIMENT STATION RECORD. 



ripening varieties and those that do not keep so well are held 1 or 2 degrees higher, 

 that is, at 33 to 34°. . . . The early apple, when held at a low temperature, 

 loses in quality and when it comes out of storage it goes down quicker than if held 

 at the higher temperature. Moreover, some fruit as, for instance, that of the ordi- 

 nary Twenty Ounce freezes at a higher temperature than does other fruit like the 

 ordinary Baldwin, and for this reason aside from others must lie held higher." 



Very large specimens of a variety which, as before noted, do not keep as well as 

 medium-sized specimens, are held one degree higher in cold storage by some han- 

 dlers. Others hold all sizes of the same variety at the same temperature. A table is 

 given which shows in detail the temperatures at which different varieties of apples 

 are held in cold storage by 5 different commercial fruit handlers. 



Lists are given of the varieties of apples which are comparatively little affected in 

 keeping quality by differences of season, of varieties liable to scald in storage, varie- 

 ties especially liable to lose in quality in going down in cold storage, varieties liable 

 to lose in color or to lack improvement in color when kept in cold storage, varieties 

 which lose in firmness in going down in cold storage, varieties liable to become bit- 

 ter in skin in going down in cold storage, varieties liable to shrivel in going down in 

 storage, varieties liable to become mealy in going down in storage, varieties liable to 

 burst in storage before decaying, varieties which go down gradually and varieties 

 which go down quickly in storage, and the heat endurance of varieties after being 

 picked and before being placed in storage. 



The bulletin closes with a final summary for each of 205 varieties of apples, in 

 which are included the results of tests of the keeping quality of apples in natural 

 temperature storage at the station for the seasons 1895-6 to 1898-9, the keeping 

 quality in cold storage as determined in cooperative tests with this Department, and 

 the keeping quality as reported by cold-storage men. 



Native plums ( Wisconsin Sta. R/>t. 1903, pp. 354-359). — This is a summary of the 

 following articles, previously published by the station: The Culture of Native Plums 

 in the Northwest, by E. S. Goff (E. S. R., 10, p. 45), and Native Plums, by E. S. 

 Goff (E. S. R., 13, p. 246). 



Observations on the fertilization of peach orchards, E. H. Jenkins (Con- 

 necticut State Sta. Rpt. 1903, pt. 5, pp. 428-431). — The experiment here reported, on 

 the value of different fertilizers for peaches, was begun in 1896 and is still under 

 way. The general plan and results secured in the experiment up to 1902 have been 

 previously recorded in detail and need not again be noted (E. S. R., 15, p. 475). In 

 the present account the yields secured in 1903 on the different plats are added to the 

 earlier records but conclusions are reserved for the future. 



Citrus fruits and their culture, H. H. Hume (Jacksonville, Fla.: The II. <.(• W. 

 B. Drew Co., 1904, pp- XXII-\-597, pis. 36, Jigs. 124) ■ — This is a very complete treatise 

 on citrus fruits and their culture. It covers the various citrus regions of the United 

 States, but deals more especially with the industry in Florida. 



The various parts into which the book is divided treat of the bote ny, history, and 

 varieties of oranges, lemons, pomelos, kumquats, citrons, and limes; the culture of each 

 of these classes of fruits; diseases and insects affecting, etc. A bibliography of about 40 

 references is included, and in tin- appendix a list is given of the members in different 

 cities belonging to the National League of Commission Merchants. Each cultural 

 phase, from the selection and budding of the stocks to the packing and shipment of 

 the fruit, is discussed exhaustively and in addition to the usual subjects treated, 

 chapters are given on pot culture, originating new varieties, judging citrus fruits, 

 frost protection, etc. 



In the preparation of the book extensive account has been taken of the citrus 

 literature of the experiment stations, more particularly that of the California ami 

 Florida stations, and of the experiences of citrus growers in those States. The book 



