1917] FIELD CROPS. 37 



Handling: and marketing Durango cotton in the Imperial Valley, J. G. 

 Mabtix and G. C. White (U. S. Dcpt. Agr. Bui. Jto8 {1911), pp. 22, figs. 6).— 

 This reports studies of the marking, tagging, and sampling of the bales, con- 

 centrating the cotton into small lots of a few bales each, and into minininm 

 carload lots for compression, undertaken by the Office of Markets and Rural 

 Organization in cooperation with the Imperial Valley Long-Staple Cotton Grow- 

 ers' Association to assist the growers of Durango long-staple cotton in the Im- 

 perial Valley in the handling, classing, and marketing of their product. The 

 studies also afforded an opportunity for studying the field conditions under 

 which Durango cotton is produced and to inspect the methods of picking, 

 handling, and storing of the seed cotton on the farm, the methods of hauling 

 cotton to the gins, its subsequent ginning and baling, and its handling and storage 

 in the yards. Inquiries were also made to determine the advisability of market- 

 ing Durango cotton directly to the spinning mills at prices equal to those ob- 

 tained by growers of staple cotton in the SUssissippi Delta and elsewhere. 



A brief discussion Is given of the transportation facilities and rates for all 

 classes of cotton grown in the Imperial Valley. 



Foxtail millet. — Its culture and utilization in the United States, H. N. 

 ViNALL (C7. &. Dept. Agr., Farmers' Bui. 193 {1911), pp. 2S, figs. iO).— This is a 

 general discussion of the kinds, production, and utilization of millets grown In 

 the United States. 



A comparison of varieties, based on data compiled from experiment station 

 tests in various sections of the country, indicates that the German and Hun- 

 garian millets are best adapted to humid regions, with the Kursk and Common 

 for the dry northwestern plains. Analyses i-eported show that the feeding 

 value of the hay of foxtail millet is approximately the same as that of timothy, 

 although injury has resulted from a continuous ration of millet hay for horses. 



These millets are utilized chiefly as a catch crop in the United States, and are 

 especially valuable in the semiarid regions because of their short growing 

 season. They are reported as being remarkably free from plant diseases. 



Potato growing' in Colorado, E. P. Sandsten {Colorado Sta. Bid. 220 {1917), 

 pp. 3-29, pi. 1, fi.gs. 1). — This is a general discussion of the cultural methods 

 and field practices employed in potato production In Colorado, including data 

 on potato diseases. 



[Field experiments with potatoes at the Jerome substation], G. W. Dewet 

 {Idaho Sta. Bui. 92 {1916), pp. 55-51). — Irrigation and cultural experiments 

 with potatoes are reported. The latter included the testing of greened v. un- 

 greened seed, foreign v. homegrown seed, mature v. immature seed, and cut v. 

 whole seed. 



Greened Idaho Rural seed produced 41.1 bu., or 17.9 per cent, per acre more 

 than the ungreened. Greened Netted Gem pi'oduced 19 bu., or 10.8 per cent, 

 more than the ungreened. Seed exchanged with the Greeley (Colo.) substation 

 outyielded the home-grown seed at Jerome by 25.6 bu. (Idaho Rural variety) 

 and 18 bu. at Greeley (Netted Gem variety). Plants from immature seed de- 

 veloped 4.8 per cent of curly dwarf, while those from mature seed developed 

 37.6 per cent. Idaho Rural grown from immature seed yielded 59.7 bu., or 16.7 

 per cent, more per acre than that grown from mature seed, while with the 

 Peoples variety the immature seed yielded 88.7 bu., or 29.5 per cent, more than 

 the mature seed. 



One hundred potato varieties were introduced from South America and grown 

 during the 1916 season, but only two are to be tested further. 



The management of tobacco soils, J. Johnson {Wisconsi7i Sta. Bui. 211 

 {1911), pp. 2-29, figs. 12). — This is a general discussion of the preparation and 



