36 GENETICS [Bot. Absts.. Vol. V, 



257. Anonymous. The improvement of agricultural crops by selection and hybridization. 

 Scot. Jour. Agric. 2: 10-20. 1919. — Substance of address delivered to Glasgow and West Scot- 

 land Agricultural Discussion Society by T. Anderson, Director of the Board's Seed Testing 

 Station. Mass selection, pure line selection, hybridization, and Mendelism in relation to 

 crop improvement are discussed. Emphasis is placed on value of pure seed stocks to the 

 farmer. — R. J. Garbcr. 



258. Anonymous. Report of the work of the plant breeding division for 1919. Jour. Dept. 

 Agric. Ireland 20: 102-107. 1920. 



259. Anonymous. [German rev. of: Allendorf and Ehrenberq. Die Aufgaben des 

 Sonderausschusses fur Zuckerriibenbau. (Special problems of sugar-beet breeding.) Mitt. 

 Deutsch. Landw. Ges. 1919: 531-534. 1919.] Zeitschr. Pflanzenzucht. 7: 112. Dec, 1919. 



260. Anonymous. [German rev. of: Amend, F. Untersuchungen iiber flamischen Rog- 

 gen unter besonderer Beriicksichtigung des veredelten flamischen Landroggens und seiner 

 Ziichtung. (Investigations on Flemish rye with special reference to improved varieties and 

 their breeding.) Landw. Jahrbuch. 52: 614-669. 1919.] Zeitschr. Pflanzenzucht. 7: 112. 

 Dec, 1919. 



261. Anonymous. [German rev. of: Barker, E. Heredity studies in the morning- 

 glory (Ipomoea purpurea). New York Cornell Agric. Exp. Sta. Bull. 392. 39 p., 3 pi. 1917. 

 (See Bot. Absts. 1, Entry 1164.)] Zeitschr. Pflanzenzucht. 7: 113. Dec, 1919. 



262. Anonymous. [German rev. of: Baur, Erwtn. Uber Selbststerilitat und iiber 

 Kreuzungsversuche einer selbslfertilen und einer selbststerilen Art in der Gattung Antirrhinum. 

 (On self-sterility and crossing experiments with a self-fertile and self -sterile species in the genus 

 Antirrhinum.] Zeitschr. indukt. Abstamm. Vererb. 21: 48-52. May, 1919. (See Bot. Absts. 

 3, Entry 2082.)] Zeitschr. Pflanzenzucht. 7: 114. Dec, 1919. 



263. Anonymous. [German rev. of : Becking, L. G. M. Baas. Over Limietverhoudin- 

 gen in Mendelsche populaties. (Limiting proportions in Mendelian populations.) Genetica 1: 

 443-456. 4 fig. Sept. 1919. (See Bot. Absts. 3, Entry 2086.)] Zeitschr. Pflanzenzucht. 7: 

 113. Dec, 1919. 



264. Anonymous. [German rev. of: Emerson, R. A. A fifth pair of factors, Aa, for aleu- 

 rone color in maize, and its relation to the Cc and Rr pairs. Cornell Un iv. Agric. Exp. 

 Sta. Mem. 16: 231-289. Fig. 71. Nov., 1918. (See Bot. Absts. 1, Entry 877.)] Zeitschr. 

 Pflanzenzucht. 7: 115. Dec, 1919. 



265. Anonymous. [German rev. of: Fraser, Allan Cameron. The inheritance of the 

 weak awn in certain Avena crosses and its relation to other characters of the oat grain. Cornell 

 Univ. Agric. Exp. Sta. Mem. 23: 635-676. June, 1919.] Zeitschr. Pflanzenzucht. 7: 116-117. 

 Dec, 1919.— See also Bot. Absts. 5, Entry 292. 



266. Anonymous. [German rev. of: Freeman, G. F. Linked quantitative characters 

 in wheat crosses. Amer. Nat. 51: 683-689. 1917.] Zeitschr. Pflanzenzucht. 7: 116. Dec, 

 1919. 



267. Anonymous. [German rev. of: Frolich, G. Die Umzuchtung von Wintergetreide 

 in Sommergetreide. (The breeding of winter cereals into spring cereals.) Friedrichswerther 

 Monatsber. 9: 27-30. 1919.] Zeitschr. Pflanzenzucht. 7: 118. Dec, 1919.— See also Bot. 

 Absts. 5, Entry 284. 



268. Anonymous. [German rev. of: Frolich, G. Die Beeinflussung der Kornschwere 

 durch Auslese bei der Ziichtung der Ackerbohne. (The influencing of grain-weight by selec- 

 tion in the breeding of field beans.) Friedrichswerther Monatsber. 9: 7-8, 17-20. 1919.] 

 Zeitschr. Pflanzenzucht. 7: 117-118. Dec, 1919. 



