FIELD CROPS. 941 



devoted to the investigation of the canse of low cotton prices from 1892 to 1895, 

 the organization of cotton spinners' associations in different States, the flrst in- 

 ternational cotton congress at Zurich, and the economic and legal aspects of 

 dealing in cotton futures. A bibliography of the literature consulted in the 

 study of those subjects is given. 



Irish potato fertilizer experiments, W. S. Hotchkiss and E. J. Kyle (Texas 

 t<ta. Bui. 101, pp. 11). — The experiments here reported were carried on for 4 

 years. 



The total results show that the use of nitrogen either in the form of cotton- 

 seed meal or nitrate of soda was very beneficial. When used in a complete 

 fertilizer very little difference in effectiveness between the nitrate of soda and 

 cotton-seed meal was observable. The apparent average increase resulting from 

 nitrogen amounted to 21 bu. per acre. 



The average increase in yield due to the use of acid i)h()spliate exceeded 23 

 bu. per acre. The results show that when nitrogen and phosphoric acid were 

 used together the yield was as high as on the plats receiving varying amounts 

 of nitrogen and phosphoric acid combined with potash. On the average for the 

 4 years the plats fertilized with nitrogen and phosphoric acid yielded about 20 

 bu. per acre more than the plats receiving nitrogen only. There was practically 

 no difference in the yield between the plats receiving acid phosphate and those 

 receiving acid phosphate and potash. During the 4 years potash gave compara- 

 tively negative results. 



With these results as a basis tlie authors recommend for all sandy East Texas 

 soils the following application of fertilizers : 1,000 lbs. of 14 per cent acid phos- 

 phate, 700 lbs. of cotton-seed meal, 200 lbs. of kaiuit, and 100 lbs. of nitrate of 

 soda. 



Rice, R. J. Nelson {Arkansas 8ta. Bui. 98, pp. 133-14S, figs. -J).— This bul- 

 letin contains notes on the rice crop of Arkansas in 1907, a report on a test of 

 pumping plants, and suggestions to prospective planters. 



The crop grown at the station in 1907 required 127.14 days to mature, the 

 season for Honduras rice being 131.25 days and for Japan rice 121.66 days. The 

 average irrigation season was 81 days. The rice was sown at the rate of 1* to 

 If bu. per acre. The drill was found unsatisfactory for sowing rice. The use 

 of fertilizers apparently hastened the time of maturity. 



Comparative tests of violet Solanum commersonii and Giant Blue, Early 

 Rose, and Magnum Bonuni potatoes, E. Lemee (Bui. Acad. Internat. Oeogr. 

 Bat.. 3. scr., 17 (1908), No. 219, pp. IV-VI). — In these observations, conducted 

 in 1907, the largest yield of the 4 varieties studied was produced by Magnum 

 Bonum. Small seed tubers of violet Sohniuni commersonii produced larger sized 

 tubers than larger seed. Violet »*^. commersonii also proved to be more pro- 

 ductive than the Giant Blue potato. 



Cooperative experiments with winter spelt, C. Fruwirtii (Wiirttcmb. 

 Wchnbl. LandH-., 1907, \o. //7, pp. 809-815). — Cooperative experiments with 

 different kinds of winter spelt were conducted in regions of low and high 

 altitude. Red Tyrol spelt gave best results at the higher altitudes, while Stoll 

 Brown Meckesheim was best adapted to the lowland sections, giving higher 

 yields of grain and straw tluui the red varieties. Soaking the seed in copper- 

 sulphate solution or similai- treatment is considered necessary in successful 

 spelt culture. 



Tobacco growing in the Philippines, G. E, Nesom (Philippine Bur. Agr. 

 Farmers' Bui. 15, pp. 13). — This bulletin presents in a popular manner informa- 

 tion and advice regarding the culture of tobacco in the Philippine Islands. 



Influence of fertilizers upon the composition and quality of wheat, H. 

 Snyder (Minnesota Uta. Bui. lOJ, pp. 2-'i-3.'i, figs. 2).— A study of the influence 



