332 EXPEKIMENT STATION EECORD. 



in April, 1913. In single bags, the maximum variation in moisture for the 

 same period was 4.6 per cent, and the minimum 3.3 per cent." 



An interesting new member of the Gramineae from Tonkin, Crevost and C. 

 LEMAEifi {Bui. Econ. IndocJmw, n. ser., 16 (1913), No. 105, pp. 1099, 1100).— 

 This notes the spontaneous appearance of and describes Erianthus cay-cong (An- 

 dropogonte). Its use in Tonkin seems to be in the manufacture of blinds and 

 screens. 



Industrial fiber plants of the Philippines, T. Muixee ([Philippine'] Bur. 

 Ed. Bui. 49 (1913), pp. 157, pis. 43)- — This bulletin contains a description of 

 the chief industrial fiber plants of the Philippines, and their distribution, method 

 of preparation, and uses, considering ferns, pandans, grasses, bamboos, sedges 

 and similar plants, palms, rattans, vines, plants with leaf or petiole fiber of 

 commercial value, miscellaneous industrial fibers, and Philippine bast fibers, 

 including about 100 specimens. 



Nutrient requirements of flax and the influence on the quantity and qual- 

 ity of its fiber, C. Cs6kas (Kis4rlet. Kozlem., 17 (1914), No. 1, pp. 64-120, 

 pis. 8). — The results of these experiments are noted as showing that flax re- 

 quires especially large quantities of potash and nitrogen during the early stages 

 of growth. Quick-working nitrogen fertilizers during the entire growth period 

 showed good results. Phosphatic fertilizers were especially useful in seed 

 production rather than in fiber production. Nitrogen and phosphorus collected 

 chiefly in the leaves, while the potash was found more abundant in the stems, 

 in which part of the plant it played a prominent part in the formation of car- 

 bohydrates. The percentage of fiber in the stems was less on those plats when 

 potash was lacking ; but the fertilizer had no influence upon the strength of the 

 fiber produced. 



Hemp, L. H. Dewey (U. S. Dept. Agr. Yearbook 1913, pp. 283-346, pis. 7, 

 figs. 5). — This article gives the history, names, botanical description, relation- 

 ship, geographical distribution, and introduction into the United States, 

 varieties, methods of improvement by seed selection, and notes on the cultiva- 

 tion of hemp, including climate, soil, rotation of crops, fertilizers, diseases, 

 insect i^sts, weeds, harvesting, seed production, and methods of retting and 

 marketing the fiber, with some commercial asi>ects. 



On the appearance of sterile " dwarfs " in Humulus lupulus, E. S. Salmon 

 (Jour. Genetics, 3 (1914), No. 3, pp. 195-200, pis. 3).— Seedling hop plants 

 (derived from crossing), the distinguishing features of which are noted 

 as total or almost total inability to climb and complete sterility, are described. 



The Buakura oat, P. McConnell (Jour. Agr. [New Zeal.], 6 (1913), No. 2, 

 pp. 133-136, figs. 3). — This article describes a rust-resistant variety of oats 

 derived from a selected spike of .Ai-gentina oats in 1908. " It has never been 

 claimed that the new oat is absolutely rust-proof. What can be claimed is that 

 it is the most resistant to disease of all the varieties tested at Ruakura." 



A noticeable color factor as an inhibiting factor in awn development in 

 oats, H. Nilsson-Ehle (Ztschr. Induktive Abstam. u. Vererbungslehre, 12 

 (1914), No. 1, pp. 36-55). — In breeding oats the author found that yellow color 

 accompanied awnlessness and that white or black colors and awns were cor- 

 related. 



By the use of charts the segregation of the color factors in hybrids to Fa 

 has been graphically shown, together with their relations to the awn factors. 

 The individual plants having the homozygous yellow factor showed a strong 

 suppression in awn development. The yellow color factor not only developed 

 the yellow color, but at the same time had an inhibiting influence on awn 

 development. In the individuals heterozygous for yellow color the inhibiting 

 influence on the awn developments is not so pronounced but still perceptible. 



