740 EXPEEIMENT STATION EECORD. [Vol.35 



obtained, and these taken by themselves showed higher yields in every case, but 

 did not change the relative standing of the varieties. In the grain tests Strube 

 Schlanstedt is stated to have ranked first 69 times and second 68 times, Silesian 

 first 31 times and second 20 times, and Leutewitz first 60 times and second 71 

 times. For the three years Strube Schlanstedt gave an average 1,000-kernel 

 weight of 38.24 gm., a liter weight of 764.3 gm., and a flintiness of 40.49 per 

 cent ; Strube Silesian a 1,000-kernel weight of 38.71 gm., a liter weight of 753.9 

 gm., and a flintiness of 30.14 per cent ; and Leutewitz a 1,000-kernel weight of 

 38.16 gm., a liter weight of 763.9 gm., and a flintiness of 41.5 per cent. 



Wheat culture in Argentina, C. D. Gibola (Bol. Min. Agr. [Buenos Aires'\, 

 19 {1915), No. 8-9, pp. 621-652, figs. jfO).— This article is a continuation of ma- 

 terial published in 1904 (E. S. R., 16, p. 663). The following varieties of wheat, 

 regarded as new for Argentina, are described from historical, botanical, and 

 cultural standpoints : Karachi, Delhi, Huasan Clubwheat, White AndalgalS., 

 Spanish, Chileno, Violet, Smooth Russian, and Pampas. Of these varieties 

 White AndalgalS, is a club wheat, and Spanish, Chileno, and Violet are durum 

 wheats, while the rest belong to the common bread wheats. 



The value of good seed, C. R. Zavitz (Ann. Rpt. Live Stock Branch Ontario, 

 1914-15, pp. 75-76). — A popular article on the subject, in which are discussed 

 the varieties of field crops and the quantities of seed giving the best results as 

 determined in experiments and by observations made by the Ontario Agricul- 

 tural College, the Ontario Agricultural and Experimental Union, and other 

 agricultural organizations. 



Seed tests made at the station during 1915, M. T. Mtjnn (New York State 

 Sta. Bui. 416 (1916), pp. 55-74; abridged ed., pp. 2). — The results of purity 

 tests of samples of seeds collected are reported in tables and are briefly dis- 

 cussed. 



Of 323 official samples of seed from dealers' stocks 4.6 per cent were found to 

 be violations of the seed law. Samples from correspondents for testing the 

 purity numbered 777, a decrease as compared with the previous year. 



Samples of orchard grass showed in some cases intentional adulteration 

 with chaff and inert matter, and samples of Dwarf Essex rape seed adultera- 

 tion with cheap bird rape seed and other varieties of rape and various kinds 

 of mustard seed. Dodder was found in one sample of orchard grass seed into 

 which it had been intentionally introduced, and over 10 per cent of the alfalfa 

 seed samples contained dodder, in one instance to the extent of 2.5 per cent. 



Agricultural value of impermeable seeds, G. T. HAEBINGTo^f (17. S. Dept. 

 Agr., Jour. Agr. Research, 6 (1916), No. 20, pp. 761-796, pi. 1, figs. 6).— The re- 

 sults here reported are based on germination tests of lots of clover and alfalfa 

 seed and a smaller number of such tests of winter vetch, okra, and other seeds, 

 made to determine the agricultural value of seeds whose coats are impermeable 

 to water at temperatures favorable for germination. It is pointed out that the 

 cultivated species sometimes producing impermeable seeds include okra, alfila- 

 rla, atriplex, asparagus, morning-glory, canna, cherry-tomato, and nearly all 

 of the cultivated species of Leguminosse. 



Commercial samples of 12 species of small-seeded legumes tested during the 

 six years, 1904 to 1909, gave a range from 0.96 per cent of impermeable seeds 

 in spring vetch to 71.67 per cent in spotted bur clover. The samples of white 

 sweet clover, toothed bur clover, and yellow-flowered sickle lucern also con- 

 tained high percentages of impermeable seeds. In a test of 128 lots of seed 

 one to five years old and including red clover, alsike clover, white clover, sweet 

 clover, alfalfa, hairy vetch, crimson clover, okra, Clmmcecrista nidtans, and 

 Robinia pseudacacia, over 90 per cent, and in most cases 100 per cent of the 



