FIELD CROPS. 963 



in the solid matter of the leaves with Lahaina ranged from 11,452 to 13,528 lbs. and 

 witli Rose Bamboo from 6,32-1 to 12,521 lbs. The fertilization stimulated leaf growth 

 in Rose Bamboo and in the case of its greatest gain in total solid matter, 14,494 lbs., 

 8(3 per cent was in the leaves, Avhile the corresponding gain with Lahaina was 25,614 

 lbs., of which only 51 per cent was in the leaves. 



Experiments in fertilization with 200 lbs. each of nitrogen, phosphoric acid, and 

 potash in various comlMnations were made simultaneously with the experiments just 

 described. These tests, made in duplicate, occupied 12 plats, 2 of which received 

 no ferti'izer. The largest gain witii both varieties was made where the 3 elements 

 were applied in the form of ground bone, nitrate of soda, and sulphate of jiotash. 

 The average gain for the 2 varieties was 3, 360 lbs. of sugar. In the experiments with 

 100 lbs. of each element, applied in the forms of nitrate of soda, double superphos- 

 l)hate and sulphate of potash, the average gain for the 2 varieties was 4,289 lbs. of 

 sugar. The loss due to heavy fertilization was in some instances very material. 



A report on fertilization containing data to which reference has been made in the 

 experiments al)ove noted is reproduced.' This deals largely with statistics concerning 

 the use of fertilizers in Hawaii and the value and the application of the results 

 o])tained at the station. 



The sugar cane in Egypt, W. Tiemann {Altrincliam, England: International Sugar 

 Journal, 1D03, jrp. XI^74, pl^^- IG, jigs. 9). — This deals with general cultivation, the 

 sugar content of the cane, tillage of the soil, manuring mediums, manuring of the 

 sugar cane, the arrangement of field experiments, field experiments during 1897-1900. 



The complete story of Vineland. sweets {Amer. Agr., 73 {1904), No. 13, pp. 

 367, 370, figs. 2). — An account of methods observed in the culture of sweet potatoes 

 at Vineland, N. J. In fertilizing this crop a formula is u.sed which calls for about 3 

 per cent of ammonia, 8 per cent of phosphoric acid, and 10 per cent of potash, and 

 costs from $28 to $30 a ton. The cost of fertilizing an acre is about $20. The fertil- 

 izer is scattered directly in the furrows and the rows ridged over it. 



Wheat growing on the Liaramie Plains, B. C. Buffum ( Wyoming Sta. Bui. GO, 

 pp. S9,pls. 7). — A description of the Laramie Plains is given, and culture and variety 

 tests with wheat at Laramie are reviewed. During the several years the work has 

 been in progress (E. S. R., 11, p. 547), over 500 varieties representing different types 

 and species have been grown. In 1902 a field of spelt yielded 2,907 lbs. per acre, 

 amoimting to 48.5 bu. at 60 lbs. per bushel, but the weight per measured Ijushel is 

 much lower. Polish wheat ( Tritirum polonicum) has given an average yield of 23.6 

 Im. per acre on the station farm; macaroni wheat ( T. durum) produced 19.2 \m. per 

 acre in 1902, and one variety, Kubanka, yielded at the rate of 31.3 bu. per acre. Of 

 p]gyi)tian wheat {T. compositum), the Sevenhead variety yielded 28.6 bu. per acre in 

 a field trial. This species produced only ordinary yields and did not prove more 

 prolific than other types of wheat. These, together with a list of varieties of common 

 wheat (7". rulgare), have been successfully grown at an elevation of over 7,000 ft. 

 Each species of wheat is briefly described. 



Of more than 150 varieties of winter wheat none was found sufficiently hardy for 

 the locality. Winter rye lias been successfully grown. Attention is callc^l to the 

 importance of early varieties, and those which ripen later than the lirst week in Sep- 

 tember are not recommended. The earliest and Itest yielding varieties for a number 

 of years are enumerated. Of 300 varieties in 1903, 60 were ripe before September 1. 

 From all the trials made the author makes the following selection of varieties which 

 he deems recommendable: Smooth wheals— Whiia Russian, Velvet Chaff, Scotch Fife, 

 Saskatchewan, Nox, Jacinth, Sonora, Australian Club, Chili, Niagara, Amethyst, and 

 Defiance; Bearded vheals — Pride of America, Doty, Soft .Australian, Chami)ion, Mos- 

 cow, and Bearded Onyx. 



The adaptaV)ility of wheats to the conditions whicii obtain in tht- locality, liy 

 means of improvement through breeding and selection, is discussed. Quite com- 



