544 EXPERIMENT STATION RECORD. 



grown sweet cassava of Trinidad is a degenerate growth, resulting from many years' 

 assiiciation with the bitter variety. 



Studies in clover, G. Martinet {Ami.. Agr. Suisse, 2 {1901), No. 1, pp. 6-19).— The 

 author reports upon a number of studies made with c-lover and clover seed at the 

 federal seed control station at Lausanne. Comparati\e tests were made of clovers 

 grown from seed of different origin, in which seed of Swiss growth was compared 

 with that from other countries. In all, about a dozen samples were grown, covering 

 a perio<l of 3 years. The season of 1900 was very hot and dry, and seriously injured 

 some varieties. In general the varieties of clover developed in the vicinity of the sta- 

 tion proved best adapted to growth at that place. Studies were made in the relative 

 weight, production, and value of clover seeds of different color. Considerable varia- 

 tion was noted in the relative weight of different colored seeds, and the author 

 believes it possible to obtain by selection a very vigorous and productive A'ariety of 

 clover which will be fairly constant in the character of its seed. 



Experiments on cotton at Ghizeh, G. P. Foaden {Jour. Khedir. Agr. Soc. and 

 School Agr., 8 {1901), No. 1, pp. l-l). — This isa brief discussion on cotton culture under 

 Egyptian conditions, including a report on experiments with different fertilizers made 

 by the Khedivial Agricultural Society. The general conclusions are that the cotton 

 croj) in Egypt is benefited by the judicious use of commercial fertilizers. Suitable 

 manuring increased the proportion of the crop obtained at the first pickings, but the 

 use of nitrate of soda alone rather counteracted this effect. Applications of superphos- 

 phate on good soil gave a beneficial result. Kainit and basic slag did not increase 

 the yield as much as superphosi:)hates. On poor soils fertilizers containing no nitro- 

 gen were not effective. Nitrate of soda gave much better results on poor than on 

 good land, but the author advises its use always in connection with other fertilizers. 

 Guano increased the yield, but proved an expensive manure. Barnyard manure an,d 

 poudrette were very effective manures, but heavy applications of barnyard manure 

 have been found detrimental to the quality of the crop. Poudrette applied by hand 

 to the plants after thinning gave better results than any other method of application. 

 On good land wide planting gave greater yield and a higher proportion of the crop 

 at the first picking than close planting. 



Eragrostis brownii, A. Morrison {Jour. Dept. Agr. West. Australia, 3 {1901), 

 No. 3, pp. 206-209, fig. 1) . — This article gives a description and the distribution of 

 this summer forage grass. 



Flax culture in Belg-ium, Kuhnert {Mitt. Deut. Landw. GeselL, 16 {1901), No. 12, 

 pp. 63-67, figs. 2). 



The Fhilippine hemp industry {Hawaiian Planters' Mo., 20 {1901), No. 2, 

 pp. 82-85). — A brief description of the methods of growing hemp {Miisa textilis) and 

 its preparation for export. 



Sisal hemp and its cultivation {Jour. Dept. Agr. West. Australia, 3 {1901), 

 No. 2, pp. 112, 113). — Brief cultural notes. 



Manurial experiments upon hops, A. D. Hall {Jour. Southeast. Agr. Col. Wye, 

 1901, No. 10, pp. 83-40). — This is a report on several cooperative experiments in 

 progress from 1 to 6 years. The results show that the typical hop soils are not 

 specially deficient in any one constituent, but require a general manuring. Soils 

 such as clays, sands, and others to which hop culture has been extended, were found 

 deficient in phosphoric acid, others in potash, and some in lime. 



The manuring' of mangels, J. Leslie {Agr. Gaz. [London], 53 {1901), No. 1417, 

 p. 116). — This is a report on fertilizer experiments with mangels, from which the 

 author draws the conclusions that in the absence of barnyard manure a complete 

 commercial fertilizer including common salt and kainit or potash in some other form 

 should be used, and that when Ijarnyard mamire is applied it is equally advisable 

 to add common salt, but to omit the kainit. 



