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



1556. Kuster, E. Uber sektoriale Panaschierung und andere Formen der sektorialen 

 Differenzierung. [On sectorial variegation and other forms of sectorial differentiation.] Mo- 

 natshefte f. d. natw. Unterr. 12: 84-87. 1919. 



1557. Lebedinsky, N. G. Darwins geschlechtliche Zuchtwahl und ihre arterhaltende 

 Bedeulung. [Darwin's sexual selection and its significance for the maintenance of species.] 

 Habilitationsvortrag. 31 p. 1918.— See Bot. Absts. 5, Entry 1423. 



1558. Lehmann, Ernst. Zur Terminologie und Begriffsbildung in der Vererbungslehre. 

 [Terminology and formation of genetical concepts.] Zeitschr. indukt. Abstamm. Vererb. 22. 

 236-260. May, 1920. 



1559. Lehmann, E. [German rev. of : (1) Sperlich, Adolf. Die Fahigkeit der Liniener- 

 haltung (phyletische Potenz), ein auf die Nachkommenschaft von Saisonpsflanzen mit festen 

 Rhythmus ungleichmassig iibergehender Faktor. (Capacity to maintain lines (phyletic potency) 

 a factor distributed irregularly to the offspring of plants with fixed seasonal rhythm.) Sitzungs- 

 ber. Akad.Wiss.Wien 128:379. 1919. (2) Sperlich, Adolf. Uber den Einfluss des Quellungs- 

 zeitpunktes von Treibmitteln und des Lichtes auf die Samenkeimung von Alectorolophus hir- 

 sutus All. Charakterisierung der Samenruhe. (On the influence of the time of application of 

 forcing -agents and of light on the germination of seeds of Alectorolophus hirsutus. Charac- 

 terization of seed rest.) Sitzungsber. Akad. Wiss. Wien 128: 477. 1919.] Zeitschr. indukt. 

 Abstamm. Vererb. 22: 299-301. May, 1920. 



1560. Leighty, Clyde E. Natural wheat-rye hybrids of 1918. Jour. Heredity 11: 129- 

 136. 4 fig. Mar., 1920. 



1561. Levine, C. O. The water buffalo — A tropical source of butter fat. Jour. Heredity 

 11:51-64. 9 fig. Feb., 1920. 



1562. Levine, C. O. Swine, sheep, and goats in the orient. Jour. Heredity 11: 117-124. 

 6 fig. Mar., 1920. 



1563. Lewis, A. C. Annual report of the State Entomologist for 1918. Georgia State 

 Bd. Ent. Bull. 55: 1-31. Fig. 2. 1919. — The cotton breeding work is along three main lines; 

 to improve the wilt resistant varieties which have already been developed, breeding for 

 earliness in Sea Island cotton, and to improve the varieties of cotton which are especially 

 adapted to central and north Georgia. Breeding for wilt resistance is being done with three 

 varieties, Lewis 63, Council Toole and DeSoto, all of which now give satisfactory results 

 under wilt conditions. Efforts are being made to stabilize the length of lint in the hybrid 

 Dix-Afifi, a long staple upland wilt-resistant variety. Selections are being made to improve 

 ten varieties of cotton adapted to north and central Georgia. A strain of Sea Island cotton 

 known as No. 33 has been developed which is much earlier than the ordinary varieties. This 

 strain is also very prolific and produces a small stalk. — D. C. Warren. 



1564. Lienhart. De la possibility pour les eleveurs d'obtenir a volonte des males ou des 

 femelles dans les races gallines. [On the possibility for the raiser to obtain males or females 

 at will in the races of poultry.] Compt. Rend. Acad. Sci. Paris 169: 102-104. 1919. 



1565. Lindhard, E., and Karsten Iversen. Vererbung von roten und gelben Farben- 

 merkmalen bei Beta-Ruben. [Inheritance of red and yellow color character in beets.] Zeit- 

 schr. Pflanzenzucht. 7: 1-18. June, 1919. — Crosses were made between red, yellow and white 

 types of beets (Beta) and carried through the F 4 generation in some cases. A provisional 

 factorial hypothesis is presented in which R G denotes red; r G, yellow; and R g and r g white. 

 This presupposes a 9:3:4 ratio when a plant RrGg is self-pollinated. A large F 2 generation 

 approximates such a ratio rather poorly and the author suggests a linkage between R and G 

 with a gametic ratio of 1.8: 1 which fits the F 2 results closely. This linkage relation, however, 



