28 AGKONOMY [Bot. Absts. 



190. Waldron, L. R. Sweet clover for North Dakota. North Dakota Agric. Exp. Sta. 

 Ext. Div. Circ. 20. 8 p., fig. 1-4. 1919. 



191. Werner,H. O. Potato culture in North Dakota. North Dakota Agric. Exp. Sta. 

 Ext. Div. Circ. 22. 8 p. 1919. 



192. Waldron, L. R., and W. R. Porter. Brome-grass, slender wheat-grass and 

 timothy. North Dakota Agric. Exp. Sta. Ext. Div. Circ. 24. 8 p. 1919. — Deals with Bromus 

 inermis, Agropyron tenerum, and Phleum pratense. — L. R. Waldron. 



193. Anonymous. Conversion of grass land into tillage. Jour. Dept. Agric Ireland 19: 

 215-218. 1 fig. 1919. — Considers selection, cultivation, and use of tilled crops. — Donald 

 Foisom. 



194. Anonymous. Permanent pasture grasses. Jour. Dept. Agric. Ireland 19:209-214. 

 1919. — Gives directions for changing cultivated land to hay or pasture land. Considers 

 previous cropping, seed selection, preparation of soil, and later treatment. — Donald Foisom. 



195. Anonymous. Field experiments, 1918. Jour. Dept. Agric. Ireland 19: 1S0-208. 

 1919. — Summarizes experiments conducted in all parts of Ireland from 1901 to 1918 and con- 

 cerned with: (1) potatoes (Solarium tuberosum) in regard to manure and artificial-fertilizer 

 requirements, the use of peaty soils and seaweed fertilizer, the sprouting and importation of 

 seed tubers, and the comparison of varieties; (2) mangels (Beta vulgaris) and turnips (Bras- 

 sica campestris) in regard to manure and artificial-fertilizer requirements, the use of peaty 

 soils, and the comparison of varieties; (3) oats (Avena sativa) in regard to artificial-fertilizer 

 requirements, the use of peaty soils, and the comparison of varieties; and (4) wheat (Triti- 

 cum sativum) in regard to the comparison of varieties in 1918 and the control of bunt by 

 means of copper sulphate. — Donald Foisom. 



196. Bailey, Herbert S. The production and conservation of fats and oils in the United 

 States. U. S. Dept. Agric. Bull. 769. 48 p. 1919. — An account of the sources, methods of 

 extraction, and uses of cottonseed oil, olive oil, peanut oil, coconut oil, palm kernel oil, 

 palm oil, corn oil, soy bean oil, linseed oil, castor oil, lard, tallow, butter and cheese, fish 

 oils, and other vegetable and animal products. Tables are given showing the yearly pro- 

 duction, importation, and exportation of various fats, oils, and their derivatives in the 

 United States from 1912 to 1917, and the monthly production from January to June, 1918. 

 Methods of conserving and increasing the supply of these products are discussed. Emphasis 

 is placed upon the increasing use of vegetable oils in place of certain animal fats, and the 

 substitution of less well-known oils for those difficult to obtain. A newhydrogenation proc- 

 ess "makes it possible not only to produce hard fats from liquid oils, but also to convert 

 oils formerly considered inedible into sweet, white, perfectly wholesome products." — L. W. 

 Sharp. 



197. Jordan, W. H. Director's report for 1918. New York Agric. Exp. Sta. [Geneva] 

 Bull. 457. 25 p. 1918.— See Bot. Absts. 3, Entry 856. 



198. Federal Horticultural Board. U. S. Dept. Agric. Amendment No. 1 to 

 regulations supplemental to notice of quarantine No. 37. Service and regulatory announce- 

 ments 60: 21-22. 1919— See Bot. Absts. 2, Entry 1291; 3, Entry 399. 



199. Scofield, C. S., T. H. Kearney, C. J. Brand, O. F. Cook, and W. T. Swingle. 

 Production of American Egyptian Cotton. U. S. Dept. Agric. Bull. 742. SO p. 1919. — 

 Egyptian cotton is described as having a fine, very strong, long staple fiber, used in the 

 manufacturing of sewing thread, hosiery, automobile tire fabrics, and fine and fancy dress 

 goods. Practically all Egyptian cotton used heretofore in the United States has been 

 imported from Egypt, the annual importations during the past ten years having been over 

 180,000 bales of 500 pounds each. The production of this type of cotton in the United 



