438 EXPERIMENT STATION RECORD. [Vol.40 



for the better soils of the west-central, central, and east-central parts of the 

 State, while Cleveland and early strains of Triumph were the best short staple 

 sorts. Where " benders " are desired, Rowden and Lone Star are deemed 

 best. On the poorer soils of this region Trice, Rublee, and Cleveland did well. 

 Express and Webber are recommended for hill lands where long staple cotton 

 is to be grown. 



On the thin soils of the southern third of the State, Trice, Rublee, and 

 Cleveland were best. On the better soils, long staple kinds such as Expn 

 Foster, and Webber gave good results, while Triumph, Rowden, and Lone Star 

 also did well. 



Varieties of cotton. Summary 1909 to 1917. W. E. Ayres [Arkansas Sta. 

 Circ. 44 (1918). pp. J). — This presents a summarized statement in tabular form 

 of the results noted above. 



Production of American Egyptian cotton, C. S. Scofiei.d, T. H. Kearney, 

 C. J. Brand, < ». f. Cook, and W. T. Swingle (17. S. n< i>t. Agr. Bui. T,2 (1919), 

 pp. SO).— This is ;i revision <>f Bulletin 332 < E. S. R., 34, p. ."l'OE 



The cotton resources of the [French] colonies, P. Boikdakie (Bui. Soc. En- 

 cour. Indus. Nat. [Paris], 129 [1918), No. /. /./>. 97-154). — This is a compre- 

 hensive account of the cotton resources <>f the French possessions, with a review 

 of the position of tin- French cotton Industry with respect to raw material and 

 of tlie relation of the English ami German industries to raw materials. 



Experiment with flax growing at the government farm at Guemmeiza. 

 G. C. Dudgeon M/i'h. Agr. Egypt, Tech. and 8ci. Berv. Bui /..' [1917), i>i>. /-.'<. 

 ]>1. 1). — This forms a preliminary report mi a study of tlax growing in Egypt, 

 noting some experiments begun in 1915 with Egyptian-grown ±<-*-<\ to determine 

 the best rate of seeding and the effect of different dates "f harvesting on the 

 production of both seed and fiber. The details of weights, analyses, and valua- 

 tions were obtained from a report on the work made by E. Hughes. 



The average maximum yield of seed, harvested April '_'. 1010, was obtained 

 from a planting fate of approximately 2.27 im. per feddan (2.19 bu. per acre), 

 and amounted to about 17S.L! lbs. The maximum yield of stalks harvested April 

 7, amounted to -17i».7."> lbs., and was obtained from a B ling rate of 3.62 lui. 



The inheritance of hull-lessness in oat hybrids. II. II. Love and G. I*. Mo 

 Kosiik ( Imer. Nat., .".7 (/.'»/.'<>. v.. <■:). pp . r,-32. figs. 7).— The authors describe 

 work begun in loin at Cornell University in cooperation with the v. s. Depart- 

 ment of Agriculture, in which a number of crosses were made between hulled 

 and hull-less types of oats. The hull-less oat used was typical of the Avena 

 vurf'i group, while the hulled forms comprls d 1. fatua and different varieties 

 of A. sativa, Including Black Tartarian, Danish Island, Swedish Select, and 

 Sixty Pay. In addition to observations made upon the inheritance of hull- 

 lessness studies were also undertaken to determine whether the percentage of 

 hulled plants secured from any heterozygous parent varied with the percentage 

 of hulled kernels possessed by that parent, and whether hulled and hull-less 

 kernels of a heterozygous plant give approximately the same results in their 

 offspring. 



It is said to be evident from the results obtained that hull-lessness exhibits 

 a simple Mendelian ratio of one hulled, two intermediate, one hull-less. The 

 intermediates showed all gradations of bull-lessness from individuals nearly 

 hulled to those nearly hull-less. The percentage of hulled kernels on hetero- 

 zygous plants appeared to indicate to some extent the percentage of hulled 

 kernels on the heterozygous offspring. Regardless of the percentage of hulled 

 kernels present on heterozygous individuals, they tended in general to produce a 

 1:2:1 ratio. Hulled and hull-less kernels from Intermediate plants produced 

 a similar ratio. 



