228 AGRONOMY [BoT. Absts., Vol. X, 



varieties is described; a color chart illustrating these tests is included. The feeding value 

 of the sorghums in relation to alfalfa and other forage crops is discussed, and the chemical 

 analyses of the grain and hay obtained from the various varieties are given. — John A. Stevenson. 



1497. QuiN, Herbert G. The peanut (Arachis hypogea). Jour. Dept. Agric. Union of 

 South Africa 3: 160-164, 8 fig. 1921. — This is a general account of the peanut plant and 

 methods to be used in its cultivation. — E. M. Doidge. 



1498. Rader, F. E. Report of work at Matanuska station. Rept. Alaska Agric. Exp. 

 Sta. 1918: 71-84:. pi. 7-9. 1920. — The grains for seeding were grown at the Fairbanks station 

 in 1917. Three varieties of wheat, 2 of oats, and 2 of barley were tried. Spelt grew v/ell 

 but lodged badly and did not ripen; buckwheat was successful. Oats were grown for hay. 

 Several varieties of winter rye made good growth. Canada field peas sown May 18 had ripened 

 half the pods by Oct. 1. Corn was not a success. Sugar beets were small, containing 14.6- 

 16.9 per cent sugar. Mangel-wurzel, beets, and carrots grown for stock feed gave disap- 

 pointing results; rutabagas and turnips, however, did well. Forty varieties of potatoes and 

 10 of the best early seedlings from the Sitka station were tried. Potatoes are the chief money 

 crop of the region. Cauliflower does well. A nursery is being started. — /. P. Anderson. 



1499. Renson, Carlos. El barajillo, leguminosa forrajera de America Central. [A 

 leguminous forage plant for Central America.] Rev. Agric. Tropic. [Salvador] 1: 65-93. 8 pi. 

 1921. — Meibomia rensoni Paynter in ed. (locally known as barajillo), a native shrub of Salva- 

 dor growing at altitudes 600-1200 m. above sea level, gives promise as a forage plant. DiflB- 

 culties were experienced in obtaining a stand, because sections of the pods were used for 

 planting rather than the cleaned seed. Directions for obtaining cleaned seed and for seeding 

 are given. — John A. Stevenson. 



1500. Renson, Carlos. El zacate jaraguS. [Jaragua grass.] Rev. Agric. Trop. [Salva- 

 dor] 1: 2-9. 4 pl- 1921. — Cymbopogon rufus is a forage grass of Brazilian origin which has 

 given excellent results. Directions for obtaining a stand by various methods of seeding are 

 given. — John A. Stevenson. 



1501. RiCHTHOFEN, VON. Rauhweizen (Rivett's sheriff bearded). [Bearded wheat (Rivett's 

 sheriff bearded).] Mitteil. Deutsch. Landw. Ges. 36: 541. 1921. — Though bearded wheat is 

 seldom grown at present, Rivett's Sheriff Bearded is distinctly advantageous for seeding after 

 oats, as it produces better yields and matures 10 days later than other varieties. The author 

 believes that seeding after clover is a mistake. — A. J. Pieters. 



1502. RiNDL, M. Castor beans and castor oil. South African Jour. Indust. 4: 540-547. 

 1921. — Although climatic and other conditions in Natal and Portuguese East Africa are 

 suited for growing the castor oil plant, the only prospect of commercial success lies in the 

 possibility of the world's demand for lubricants exceeding the supply of mineral-oil lubricants. 

 —E. M. Doidge. 



1503. RiNDL, M. Some sources of semi-drying oils. South African Jour. Indust. 4: 

 479-485. 1921. — The possibilities of a number of plants as oil-producers, are considered. 

 Corn oil and cotton seed oil as produced in South Africa are discussed. Manketti nuts (Rici- 

 nodendron rautanenii Sching) yield a semi-drying oil insoluble in alcohol and readily soluble 

 in light petroleum. But as long as other oil seeds are obtainable at reasonable rates, intrac- 

 table nuts of this kind with low oil content are likely to remain unused; this is true also of 

 Ingogo nuts. Seeds of Jatropha curcas, cultivated in the Portuguese colonies, are exported 

 to Portugal in considerable quantities for making Curcas oil, a strong purgative. — E. M. 

 Doidge. 



1504. RoDRfGUEZ, Socrates. Nociones sobre ensilaje de plantas. La parva-silo. [Notes 

 on silage making. The stack silo.] Inspecci6n Nacion. Ganaderia y Agric. [Uruguay] Bol. .35. 

 22 p., 10 fig. 1919. — Methods of making stack silos and the importance of silage in Argentina 



