FIELD CKOPS. 



141 



Average composition {food constituents) of Sea Island cotton seed and its products. 



Cotton sopfl 



Cottoii-seed kernels 

 Cotton-sued hulls . . 

 Cotton-.<eud linters. 



Cotton-st'ed lint 



Cotton-seed meal . . 



Water. 



Per cent. 

 8.05 

 6.47 

 10.29 

 6.93 

 5.91 

 9.24 



rrotein. 



Per cent. 

 20. 96 

 34. 00 

 6.71 

 3.88 

 2.30 

 28.43 



Per cent. 

 19.71 

 34.65 

 3.04 

 2.27 

 1.10 

 7.86 



Nitrogen 



free 

 extract. 



Per cent. 



31.44 



016.80 



44.73 



11.29 



8.03 



b33.41 



Crude 

 fiber. 



Per cent. 

 15. 31 

 2.31 

 32. 22 

 73. 20 

 81.04 

 15. 92 



Ash. 



Percent. 

 4.53 

 5.77 

 3.01 

 2.43 

 1.62 

 5.14 



n Containing 4.49 pentosan.s. 



!) Containing 13.08 pentosans. 



The feeding value of the seed i.s discussed. The averages for nitrogen and ash con- 

 stituents are given in the following table: 



Average composition, {nitrogen and ash constituents) of Sea Island cotton seed and its 



products. 



n In air-dry material. 



The difficulty of securing ?11 of the phosphoric acid present in Sea Island seed by- 

 ordinary treatment with nitric and hydrochloric acids indicated the presence of some 

 organic form of phosphorus, such as glycerol-phosphoric acid or lecithin. A num- 

 ber of determinations of the latter substance were made, showing 0.66 per cent in 

 the seed and 0.94 in the meal, an amount too small to influence to any appreciable 

 extent the determination of phosphoric acid. It is concluded that part of the latter 

 is in the form of meta and pyro phosphoric acid, as shown l)y Hardin to be the case in 

 upland cotton-seed meal (E. S. K.,4, p. 901), and only a small part in the ortho form. 



Hop culture in Belgium, L. Bethune {Jour. Soc. Cent. Agr., Belg., 49 {1902), 

 No. 4, pp. 147-167). — An article discussing the condition of the Belgium hop industry. 



Potatoes grown under straw {Amer. Agr. [mid. ed.), 69 {1902), No. 4,P' 1^4)- — 

 A brief note on how prize potatoes were grown by this method. 



Report on ramie, E. Dazey {Bui. Agr. Algerie et Tunisle, 8 {1902), No. 1, pp. 

 24-32). — This report treats of the culture of ramie in Algeria and its preparation for 

 industrial purposes. 



The rice industry of Louisiana and Texas, A. E. Hebert ( Tradesman, 46 

 {1902), No. 9 {23. annual), pp. 113-11.5, Jigs. 2) .—A general account of the industry 

 in these two States. 



Pennsylvania sugar beets in 1901, W. Fre.\r and W. T. Carter {rennsylvania 

 Sta. Bui. 59, 2)p. 8). — The composition of 31 samples of sugar beets grown in Elk 

 County in 1901 and the yields per acre from 22 plats are reported. The average per- 

 centage of sugar in the cleaned and decrowned beets was 16 per cent and the average 

 coefficient of purity 83.8 per cent. The average yield of topped beets on 22 plats was 

 at the rate of 13.52 tons per acre. The weather conditions were less favorable than 



8994— No. 2—02 4 



