230 AGRONOMY [Box. Absts., Vol. VII, 



Versuchssta. 93:258-276. 1919. — Germination tests of naked and covered, or beglumed, 

 timothy seeds taken at random from the same samples showed that the former had a lower 

 percentage germination than the latter, although the naked seeds are generally the largest and 

 ripest. The difference seems to be due to the greater sensitiveness of naked seeds to unfavor- 

 able seed bed conditions. The naked seeds were more liable to mold. Exposure of the 

 germinating seeds to light lessened the rate of germination of both kinds, but the final result 

 was not appreciably affected in either case. — A. T. Wiancko. 



1551. Howe, H. E. The search for cereals. Sci. Amer. Monthly 1:553-554. 1920.— 

 A brief account of the collecting of cereals from foreign countries for the purpose of introduc- 

 ing new strains and varieties into North America. — Chas. H. Otis. 



1552. HtTTCHESON, T. B., AND T. K. Wolfe. The effect of fertilizers on the germination 

 of seeds. Virginia Agric. Exp. Sta. Ann. Rept. 1918-1919:33-37. 1920.— The experimental 

 work consisted of tests in small flats on two different types of soils under greenhouse condi- 

 tions. The injurious effect of fertilizers on germination varies with the kind of seed, the 

 soil type, and the method of application. With few exceptions materials applied in the row 

 in direct contact with the seed were more injurious than when applied broadcast and mixed 

 with the soil before seeding. — F. D. Fromme. 



1553. Jex, Wallace. Sugar and sugar products. South African Jour. Indust. 3 : 705-716. 

 1920. — The early history and development of the sugar industry in Natal is outlined, and an 

 account given of the cultural methods and manufacturing processes employed. — E. M. 

 Doidge. 



1554. Johnson, E. C. Twenty-ninth annual report. Washington [State] Agric. Exp. Sta. 

 Bull. 155. S7 p. 1920. — Contains brief summary reports of experimental work by the Divi- 

 sion Heads, among which are the following : The value of pea straw as a roughage for lambs, 

 for wintering pregnant ewes, and for ewes suckling lambs; forage crops for pork production; 

 a comparison of different inoculating cultures and factors that control the infection of legumes 

 by bacteria; seed analysis; spraying for weeds; influence of cultivation of soil on nitrogen 

 composition of wheat; a comparison of corn, artichoke, and sunflower silage as feeds for milk 

 production; sweet clover for pasture for dairy cows; "sour milk" silage; field crop varieties; 

 value of a nurse crop; cultivation and rate of seeding wheat; inheritance of varietal charac- 

 ters; crop rotations; orchard pollination; Mendel's law in blackberry and raspberry hybrids; 

 apple rosette; orchard cover crops; renovation of prune orchards; apple storage; fruit evapora- 

 tion and by-products; wheat smut, the rhizoctonia disease, plant disease survey; oat smut; 

 the nitrogen supply in semi-arid soils; and soil moisture studies. — F. D. Heald. 



1555. Kelly, H. J. Planting Sudan grass. Agric. Gaz. New South Wales 31:719-720. 

 1 fig. 1920. — Brief notes are given on general culture, time of planting, and quantity of seed to 

 sow. — L. R. Waldron. 



1556. Kerle, W. D. Farmers' experiment plots. Potato experiments, 1919-20. Upper 

 north coast district. Agric. Gaz. New South Wales 31: 781-788. 2 fig. 1920.— Variety and 

 manurial experiments were conducted in conjunction with farmers. The outstanding feature 

 of the experiments was the greatly increased yields brought about by the use of phosphorus, 

 the maximum net increase in market value of crop from five stations averaging over $200 per 

 acre. — L. R. Waldron. 



1557. Lehkum, p. Ueber ein neues Verfahren zum Abkeimen der Kartoffeln. [A new 

 process for removing sprouts from potatoes.] Mitteil. Deutsch. Landw. Ges. 35: 587. 1920. — 

 Brief note referring to work done by Schribaux (citation not given). The process consists in 

 immersing sprouting potatoes in weak sulphuric acid. — A. J. Pieters. 



1558. Lindner, P. Unser Getreide als Fettquelle und die Bedeutung der Aleuronschicht 

 fiir das Getreidekorn. [Our cereals as a source of fats and the significance of the aleurone 



