1917] HORTICULTURE. 143 



apples; some seedling plums; a Turkestan radish and Siberian muskmelons and 

 watermelons found by the author; Siberian forms of almond, buckthorn, and 

 Lavatora ; Rosa i-ugosa; Manitoba hazelnut; and New Ulm black walnut. 



Attention is called to the value of Siberian and Hybrid Siberian crab apples 

 as important stocks for insuring freedom from root killing. In the station 

 orchard the Wealthy apple has borne abundantly on the Siberian stock. 



Notes on novelties and plants not well known, F. E. Bt?CK (Ann. Rpt. Hort. 

 Socs. Ont., 11 {1916), pp. 95, 96). — Brief descriptive notes are given on tlowers 

 and plants grown in the test plats of the Central Experimental Farm for the 

 first time during the season of 1916. 



Calendar for the treatment of plant diseases and insect pests, W. J. Grken, 

 A. D. Sklby, and H. A. Gossard (Ohio Sta. Bui. 309 {1911), pp. ^85-516, figs. 

 3).— A revised edition of Bulletin 232, previously noted (E. S. 11., 2G, p. 539). 



Winter sprays: Lime-sulphur spray and crude oil emulsions, A. L. 

 Melander {Washington Sta. Popular Bui. 107 {1917), pp. 12). — A revised edi- 

 tion of Popular Bulletin 64 of the station, previously noted (E. S. R., 31, p. 740). 



Cabbage and cauliflower culture, C. B. Sprague {Washi)igton Sta. Popular 

 Bui. 110 {1911), pp. 4)- — A popular treatise on the climatic and soil require- 

 ments, culture, harvesting, and storage of cabbage and caulillower. 



Celery culture, F. W. Allen {Washington Sta. Popular Bui. 109 {1917), pp. 

 Jf). — A treatise similar to the above. 



Lettuce growing in California, S. S. Rogers {California Sta. Circ. 160 

 {1911), pp. 16, figs. 11). — This circular discusses the classification of lettuce, 

 importance of the industry in California, lettuce growing districts in California, 

 cost of production, yields, profits, cultural requirements, harvesting, packing, 

 varieties, and crop troubles. 



Growing tomatoes on stakes: Advantages, increased profits, and proper 

 methods of culture, S. N. Green {Mo. Bui. Ohio Sta., 2 {1911), No. 3, pp. 91-95, 

 figs. 2). — This paper presents some data based on information secured from 

 practical growers, as well as on tests conducted by the station, showing the 

 proper methods of growing tomatoes on stakes, together w^ith the advantages 

 and increased profits therefrom. 



Forms of some Philippine fruits, J. de Leon y German {Philippine Agr. 

 and Forester, 5 {1916), No. 8. pp. 251-283, figs. 16). — In the present study the 

 author aims to show the importance of improving varietie.s of fruits by the 

 selection of the best native forms and propagating them vegetatively. Various 

 native varieties of fruits are here described. 



Irrigation of orchards, F. Adams {Cal. Citrogr., 2 {1911), No. 1, pp. 2, 3, 

 figs. 2).— A paper on this subject read at the Citrus Institute, Kiver.side, Cal. 



The Maryland apple grading and packing law, T. B. Symons and S. B. 

 Shaw {Md. Agr. Ext. Serv. Bui. 1 {1916), pp. 23, figs. iO).— This bulletin gives 

 the text of the Maryland apple grading and packing law, calls attention to 

 similar laws enacted by other States and by the Federal Government, explains 

 the requirements of the law, and gives suggestions relative to harvesting, 

 grading, and packing apples. 



Cooperative organization, G. V. Branch {Ann. Rpt. State Hort. Maine, 5 

 {1915) pp. 35-43). — An address to the apple growers of Maine in which the 

 author points out the benefits of cooperative organization in marketing. 



North American varieties of the strawberry, S. W. Fletcher {Virginia 

 Sta. Tech. Bui. 11 {1916), pp. 3-126, figs. i9).— This bulletin, which comprises 

 a descriptive list of 1.879 varieties of strawberries, includes all varieties that 

 have originated in North America so far as can be discovered from an ex- 

 tensive review of the literature of the subject. A bibliography of North Ameri- 



