6 " AGRONOMY [BoT. Absts., Vol. VIII, 



37. Makin, R. N. Some recently introduced fodder plants. Agric. Gaz. New South 

 Wales 31:873-874. 1920. — Brief cultural notes are given on Sudan grass, elephant grass 

 (Pennisetum purpureum), and saecaline (Andropogon sorghum). — L. R. Waldron. 



38. Mateenaers, F. F. Der Grubensilo tind der Schanzensilo. [The pit silo and the 

 tank silo.] Mitteil. Deutsch. Landw. Ges. 35: 673-679. 1920. — Detailed descriptions, with 

 diagrams, of methods of constructing the pit and the tank silo. — A. J. Pieters. 



39. Newhall, C. a. The direct identification of soy-bean oil. Jour. Indust. Eng. Chem. 

 12 : 1174-1175. 1920. — A method of identification of soy-bean oil involving the use of uranium 

 acetate or uranium nitrate is discussed. — Henry Schmitz. 



40. Oeberstein. Ueber einige seltenere Luzerne und WoUklettenbeischliisse. [Con- 

 cerning some rare lucerne and woolcombing enclosures.] Landw. Jahrb. 53: 627-637. 1^19. 

 — The author describes some impurities and adulterants found in lucerne seed which appear 

 to indicate the source as Persia and Asia Minor. The seeds secured from wool combings 

 proved to be those of Medicago denticulata and M. maculata. — A. J. Pieters. 



41. Pardt, Alexander. Broadcasting versus drilling oats. Scottish Jour. Agric. 3: 

 232-236. 1920. — In a 4-year test in northern Scotland the high yields of grain were obtained 

 by 4 different methods of seeding, in the following order: cross drilled, broadcast and drilled, 

 broadcast, and single drilled. The total average difference was less than 3 bushels. In 

 seeding, 6 bushels were used on the drilled plots, 7 on the plot drilled and broadcast, and 8 on 

 the broadcast plot. — H. V. Harlan. 



42. PiUTTi, A. Sur I'action de la chloropicrine sur les parasites du ble et sur les rats. [The 

 effect of chloropicrine on the parasites of wheat and on rats.] Compt. Rend. Acad. Sci. Paris 

 170 : 854-856. 1920. — Results are given of experiments in the use of chloropicrine as an insecti- 

 cide for wheat. The seed was treated with a dose of 10 cc. per cubic meter. The loss in per- 

 centage of germination was found to be 30. Flour and bread made from seed treated in this 

 way showed no deleterious effect. — C. H. Farr. 



43. R0RBAM, K. Unders0gelse af olieholdige Fr0 af en ukendt Plante. [An unknown 

 plant with oil-containing seed.] K. Veterinaer og Landbohoejskole Aarsskr. 1920: 36-42. 

 1920. — An undetermined rape hybrid, seed of which was found as a contamination in Russian 

 flax seed, upon analysis proved to have about the same chemical composition as rape seed, 

 and is being taken up for comparative experiments at the state experiment stations. — 

 Ernst Gram. 



44. Shear, W. V. How certified seed potatoes will benefit the California potato industry. 

 Monthly Bull. Dept. Agric. California 9: 375-381. 1920. 



45. Stmon, J. A. The turnip crop of Scotland. Scottish Jour. Agric. 3: 26-35. 1920. — 

 In 1919 turnips were grown on 426,251 acres of the 3,408,479 acres of arable land in Scotland. 

 For sanitary reasons turnips are grown in 5, 6, or 7-year rotations. The largest seeds produced 

 the largest plants. The seed is drilled in ridges 28 inches apart. Seeding should be com- 

 pleted before May 25. Phosphorus is the most important fertilizer for the turnip crop. — 

 H. V. Harlan. 



46. Thompson, H. C. The manufacture and use of peanut butter. U. S. Dept. Agric. 

 Dept. Circ. 128. 3-16. Fig. 1-6. 1920. 



47. TtiNG, Shih Chin. [Kaoliang and breeding.] (Text in Chinese.) Khu-Shou [Science- 

 Publ. Chinese Sci. Soc] 5: 712-716. 1920. — A general discussion is presented of Andropogon 

 sorghum varieties obovata, saccharatus and vulgare regarding root systems, drought resist- 

 ance, relations to soil, self-fertilization and cross-fertilization, poisonous content, and 

 adaptability to all kinds of soil. Methods of producing pure seeds from desirable plants 

 and methods of cross-pollination are described. The head-to-row system of individual 



