No. 2, September, 1920] AGRONOMY 165 



smut grass (Sporobolus berteroanus) , marsh bermuda ($]><>rt>h<>lu8 virgatus), Carolina clover 

 (Trifolium Carolinianum), hop clover (T. procumbeus] T. dubium). — Directions for soil prep- 

 aral ion and seeding are present ed by t he author and also mixtures of grass seeds suitable for 

 various soils of the state. — T. II. McHatton. 



1216. Taylor, 11. W. Tobacco culture, grading on the farm. Rhodesia Agric. Jour. 

 17:20-27. 1920. 



1217. Tran-van-Huu. Note sur la variete de riz dite "Hueky." [Variety of rice known 

 as "Hueky."] Bull. Agric. Inst. Sci. Saigon 2 : 75-78. 1920. 



1218. Tran-van-Huu. Note sur la culture du riz flottant en Cochinchine. [Cultiva- 

 vation of floating rice in Cochinchina.] Bull. Agric. Inst. Sci. Saigon 2: 46-52. 1920. — Notes 

 on ten varieties and a description of the methods used in growing these forms of the rice 

 plant which are peculiarly adapted to inundation. — E. D. Merrill. 



1219. Vageler, H. Beziehung zwischen Parzellengrosse und Fehler der Einzelbeobach- 

 tung bei Feldversuchen. [Relation between size of plot and error of the single observation in 

 field experimentation.] Jour. Landw. 67:97-108. Ifig. 1919. — Rye, oats, potatoes, and kohl- 

 rabi fields were each divided into 128 small rectangular plots, of which the yields were separ- 

 ately determined. The probable errors of the average yields of these plots considered singly 

 and in different combinations were calculated. Different results were obtained according to 

 the method and procedure followed, but when using the method considered least objectionable 

 the probable error is not greatly reduced by enlarging the plots above about 50 square meters. 

 — C. E. Leighty. 



1220. Vernet, G., and X. Salomon. Notes sur le Fourcroya gigantea Vent. [Notes on 

 Fourcroya gigantea Vent.] Bull. Agric. Inst. Sci. Saigon 2: 80-87. PI. 2. 1920. 



1221. Waldron, L. R. First generation crosses between two alfalfa species. Jour. Amer. 

 Soc. Agron. 12: 133-143. 1920. 



1222. Walster, H. L. Marquis versus durum wheats. North Dakota Agric. Exp. Sta. 

 Ext. Div. Circ. 34. 8 p. 1920.— Summary of North Dakota yields.— L. R. Waldron. 



1223. Weeks, Charles R. Growing alfalfa in western Kansas. Kansas Agric. Exp. Sta. 

 Circ. 73. 10 p. July, 1919. — Information is given on soil requirements, seed bed preparation, 

 date, rate and method of seeding, nurse crops, cultivation, time of cutting, seed crops, vari- 

 eties and insects injurious to alfalfa in Kansas. — L. E. Melchers. 



1224. Welton, F. A. Experiments with oats. Monthly Bull. Ohio Agric. Exp. Sta. 5: 

 79-83. 7 tables. 1920. — The article comprises tests of time, rate, manner, quality and vari- 

 eties of seed. — R. C. Thomas. 



1225. Wenholz, H. Field peas as fodder. A substitute for wheat and oats. Agric. Gaz. 

 New South Wales 31 : 167-170. 1920. 



1226. Wenholz, H. Soil improvement for maize. I. Manures and fertilizers. Agric. 

 Gaz. New South Wales 31 : 29-35, 111-116, 117-183. 1920. 



1227. Wenholz, H. Fertilizers for green winter fodders. Agric. Gaz. New South Wales 

 31:241-242. 1920. 



1228. Westbrook, E. C. Tobacco culture. Bright leaf or flue-cured tobacco. Georgia 

 State Coll. Agric. Bull. 199. 86 p., 13 fig. 1920.— Discusses a development in history of the 

 bright tobacco (Nicotiana tabacum) industry in Georgia and considers advisability of increas- 

 ing the crop. Discusses tobacco soils, crop rotation and general principles of tobacco culture, 



