FIELD CROPS. 233 



average product has been about 56 bu. and that it has cost about 45 cts. per 

 bushel to produce it. 



Corn judging-, R. A. Moore (Wisconsin Sta. Circ. Inform. 8, pp. 16, figs. 10). — 

 The importance of corn judging as a basis of improvement is stated and a 

 score card prepared with special reference to Wisconsin conditions is presented 

 and fully explained. 



Annual report of the Ontario Corn Growers' Association, 1908 (Ann. Rpt. 

 Ontario Corn Groweis'' Assoc. 1908, pp. ^7, figs. 13). — This report contains the 

 constitution of the association and a series of addresses and articles of a 

 popular nature on the problems of corn production. 



Cotton breeding for farmers, R. J. H. De Loach (Bill. Univ. Ga. No. 106. 

 pp. 2-'i. figs. 9). — A popular i)resentation of the general subject of cotton breed- 

 ing, with information on diseases and varieties of cotton. 



Observations on the effects of storage on cotton seed, H. A. Tempany ( West 

 Indian Bui., 10 {1909), No. 2, pp. 12I-12Ji). — It was observed that after a period 

 of storage, crushed cotton seed gave a bright yellow color when mixed with 

 water, due to rupture and chemical change in the resin cavities in the seed 

 mass. A study of the effects of storage showed that fresh seed had a germi- 

 nation percentage of 51 on February 24, 1908, of 49 on .lune 3. but of only S 

 on April 24, 1909. Substantially the same results were obtained when seed 

 from the same lot was preserved in a desiccator over strong sul])buric acid for 

 the same length of time. 



Forty-first annual report of the flax supply association for the improve- 

 ment of the culture of flax in Ireland, and the dissemination of informa- 

 tion relative to the production and supply of flax for the year 1908 {Ann. 

 Rpt. Fla.v tiuppiii Assoc. Inland, J,l {1908). pp. J)). — Statistical data on the 

 flax and linen industries in Ireland and other countries are given. 



Varieties of oats, L. Malpeaux {.four. Agr. Prat., n. scr.. 18 {1909), No. J/O. 

 pp. 1(67-469). — Studies in seed selection and in variation in nitrogen content 

 and in difficulty of mastication as related to cellulose content are presented 

 in this article, together with analyses and other data in tabular form for the 

 d'Yvois, de Kirsch, Hvitting, Pluie d'Or, Abondance, Ligowo de I'Ecole, Ligowo 

 II, Probster Blanche, and des Salines varieties. From the standpoint of nitro- 

 gen content and yield the best results were obtained with Abondance, Pluie 

 d'Or, d'Yvois, and Probster. 



Report on an experiment in 1906 on the effects of planting sprouted seed 

 on the yield of the potato crop, II. P. Wuigiit ( W(:<<t of IScot. Agr. Col. Ann. 

 Rpt., 9 {1909), pp. 101-114). — The object of this experiment was to determine 

 the effect upon yield of sprouting potato tubers before planting. The increase 

 varied with the varieties tested, the later varieties showing a decided increase. 



Report of the cultivation of potatoes with chemical fertilizers at Penha, 

 P. Cavalcanti {Lavoiira; Bol. Soc. Nac. Agr. [Brazil], 13 {1909), No. 4-6, pp. 

 102-104). — In a combined variety and fertilizer test, the best yield was obtained 

 from Aspargo, followed by Rose-native and Lechs. 



Annual of the rice culture experiment station {Ann. Staz. Sper. Risicolt. 

 VerceUi, 1908, pp. 179, pis. 18, figs. 23). — This publication is a digest of informa- 

 tion for the rice producer, in which the status of the industry is outlined. Cuts 

 and descriptions of, and data concerning, varieties of rice are followed by 

 general information on seed selection, manuring, methods of preparation of the 

 soil, planting, cultivation, h:irvesting, drying, and storing. Statistics of imports 

 and exports are also given. 



Tobacco districts and types, J. P. Killebrew (U. S. Dept. .Agr., Bur. Statis. 

 Circ. 18, pp. 16). — This circular describes briefly the several tobacco districts 



