538 EXPERIMENT STATION RECORD. [Vol.37 



hybrids were grown at the Glen Innes Experiment Farm for the years 1912, 1913, 

 1914, and 1915, and 100 uniform grains of each variety selected each year, 

 carefully husked, the kernels and husks weighed, and the percentage of husks 

 determined. Tartar King with 39.94 per cent and Sunrise with 26.31 per cent 

 husks represented the extreme limits in the results obtained. 



Standardization and group classification of potato varieties for Michigan, 

 C. W. Waid {Mich. Agr. Col, Ext. Div. Bui. 5 {1916), pp. 15, figs. 8).— A group 

 classification and description of potato varieties best suited to Michigan condi- 

 tions, based on the classification given by Stuart (E. S. R., 32, p. 830). 



[Potatoes], A. Cadoket {Prog. Agr. et Vit. {Ed. VEst-Centre), 37 {1916), No. 

 15, pp. 355, S56; abs. in Internat. Inst. Agr. [Rome], Intemat. Rev. Sci, and 

 Pract. Agr., 7 {1916), No. 6, p. 828). — After a brief review of various methods 

 for a more economical use of seed potatoes, the author describes his own method, 

 which has given good results for several years. The tubers are placed in a 

 dry cellar at a temperature above 17° C. (62.6° F.), and before they wrinkle 

 rooting sprouts are obtained. These sprouts are planted at distances of 8 by 

 20 in. at a depth of from 2% to 3i in., according to the soil. The author states 

 that a crop of 8^ tons (approximately 280 bu.) per acre of marketable potatoes 

 may be obtained. The method is applicable to all loose, light, and relatively 

 dry soils. 



The production of potatoes by cuttings, A. Cadoret {Prog. Agr. et Vit. {Ed. 

 VEst-Centre), SS {1917), No. U, pp. 525-527).— An economic discussion of the 

 above, emphasizing the saving in seed made possible by this scheme. It is esti- 

 mated that from 595 to 800 kg. of seed per hectare (8.8 to 11.8 bu. per acre) 

 would suffice as compared with 3,333 kg. of seed required by the Girard method 

 (E. S. R; 5, p. 117). 



Potato growing and potato diseases from Maine to California, W. J. Mokse 

 {Maine Sta. Doc. 5S1 {1916), pp. 20). — This is a partial report of the author's 

 observations on a tour of inspection through the leading potato-growing sections 

 of the Northern and Western States in 1914, in company with Appel et al., in 

 order to secure first-hand information on the growing of potatoes and on 

 potato diseases under a variety of conditions. It was presented at the annual 

 meeting of the Maine Seed Improvement Association at Lewiston in December, 

 1915. 



Spraying potatoes in 1916 {Maine Sta. Doc. 522 {1916), pp. 12, fig. 1).— A 

 popular discussion of potato spraying for the control of disease and insect 

 enemies under the market conditions of spray materials then existing. 



The transplanting of rice in Egypt, V. MossifeBi {Bui. Union Agr. Egypte, 

 lit {1916). No. 114, PP- 5-lS). — This is a preliminary note on two experiments 

 to determine the comparative value of seeding rice in the field and transplanting 

 it from a seed bed. A comparison was also made of early and late seeding and 

 early and late transplanting. 



It was found that the cost of production was slightly greater when the rice 

 was transplanted, and the yield considerably less than where the seed was sown 

 in the field, resulting in a net return decidedly in favor of the latter system of 

 cultivation. Early seeding and early transplanting gave larger net returns 

 than late seeding and late transplanting. 



Studies in rice, J. C. Rundles {Philippine Jour. Set., Sect. C, 10 {1915), No. 

 6, pp. S51-S78, pis. 5). — Rice seed selection is discussed In detail, with em- 

 phasis on the methods of selection and the factors which should govern the 

 selection of standard varieties, such as production, market demand, maturity, 

 character of the plants, and character of the paddy. Rice gro%\ing is discussed 

 in some detail with special reference to the preparation, seeding, and care of the 

 nursery seed bed. 



