No. 3, October, 1921] ' AGRONOMY 175 



1113. CoMPTON, R. II., AND J. W. Mathews. The cultivation of buchu. Jour. Dept. 

 Agric. South Africa 2 : 223-228. 3 fig. 1921.— The climate of the winter-rain belt is naturally 

 suited to the requirements of buchu; the plant is propagated by seed and "dry" cultivation 

 is practiced. Directions are given for harvesting and marketing buchu, and the yield of 

 resin and oil from various species of Barosma is compared. — E. M. Doidge. 



1114. CzuBER, E. Beziehung zwischea Parzellengrosse und Fehler der Einzelbeobachtung 

 bei Felderversuchen. [Relation between size of plats and error in detached observations in 

 field experiments.] Zeitschr. Landw. Versuchsw. Deutschosterreich 23: GI-68. 1920. — 

 The results of a series of plat experiments, in which the yields of rye, oats, potatoes, and rape 

 were reported upon by W. Vageler in Jour. Landw. for 1919, page 97, are discussed. The 

 present writer takes Vageler's data and by a different mathematical treatment obtains differ- 

 ent results for the ratio of percentage of error to size of plats. His methods are given in 

 detail. — John W. Roberts. 



1115. Downing, R. G. Trials of canary seed. Agric. Gaz. New South Wales 32: 308. 

 1921. — Trials were conducted with Phalaris canariensis (?) on 4 experimental farms with fairly 

 satisfactory results. At Cowra 730 pounds of seed per acre were secured. — L. R. Waldron. 



1116. EcKENBRECHER, C. Anbauversuche der Deutschen Kartoflfel-Kultur-Station im 

 Jahre 1920. [Cultural studies of the German potato-culture station in 1920.] Illus. Landw. 

 Zeitg. 41: 74-75. With colored pi. 1921. — German varieties of potatoes (21) were 

 studied with respect to tuber yields, starch content, and starch yields. The highest 

 tuber-yielding variety (Bliicher) appeared to be also the highest starch-yielding variety and, 

 in general, a great deal more parallelism exists between the high total yields and the high 

 starch yields than between either of these 2 and the starch content. — M. Shapovalov. 



1117. Galang, F. G. Yam culture. Philippine Agric. Rev. 13: 63-72, PL 3. 1920.— 

 Cultural directions and yield data are given for various species of Dioscorea, especially D. 

 alata and D. esculenta (D. aculeata). — E. D. Merrill. 



1118. Gaylord, F. C. More and better potatoes. Proc. Amer. Soc. Hort. Sci. 17:99-102. 

 1920 [1921]. — Striking results have been obtained following an organized effort in Indiana to 

 demonstrate to the growers the best methods of handling the potato crop. The average in- 

 crease in production in 1919 of 12 demonstration fields was about 25 per cent. — H. A. Jones. 



1119. Ghesquiere, Jean. Rapport concernant les machines pour la traitement des 

 semences de coton centre les teignes. [Report on machinery for the treatment of cotton seed 

 against moths.] Bull. Agric. Congo Beige 11: 147-150. 1920. 



1120. GoFP, R. A. Report of the Glenwood Substation. Hawaii Agric. Exp. Sta. Rept. 

 1919: 68-73. 1920. — At the Glenwood Substation experiments were conducted with Irish 

 potatoes, sweet potatoes, Maui red beans, dryland taro, licorice roots, poha (Physalis spp.), 

 alfalfa, sweet clover, corn sorghum, edible canna, cassava, pigeon peas, and grasses. — /. M. 

 Westgate. 



1121. Heinze, B. Der erfolgreiche Anbau der Oelbohne in unserem eigenen Lande. [The 

 successful cultivation of the soybean in our own land.] Illus. Landw. Zeitg. 41 : 59-60. 1921. — 

 The author calls attention to the importance of the soybean as a food for man and animals 

 and argues for the possibility of its successful culture in Germany. — John W. Roberts. 



1122. Hiltner, L. tjber die Impfung der Futter- und Zuckerriiben. [Inoculation of feed 

 and sugar beets.] Mitteil. Deutsch. Landw. Ges. 36: 243. 1921.— A brief discussion is pre- 

 sented of the conclusions reached concerning the value of some German bacterial preparations 

 to non-leguminous plants, with special reference to an inoculating material obtained from 

 soils exceptionally w^ell adapted to the growing of beets. In very limited experiments beets 



