No. 3, April, 1921] GENETICS 247 



1710. Anonymous. [German rev. of: Tedin, Hans. The inheritance of flower colour in 

 Pisum. Heredit as 1: 68-97. 1 colored pi, 2 fig. 1920. (See Bot. Absts. 6, Entry 1776.)! 

 Zeitschr. Pflanzenziicht. 7: 337-338. Nov., 1920. 



1711. Anonymous. [German rev. of: Tischler, G. Ueber die sogenannten "Erbsub- 

 stanzen" und ihre Lokalisation in der Pflanzenzelle. (On the so-called hereditary substances 

 and their localization in the plant cell.) Biol. Zentralbl. 40: 15-28. 1920. (See Bot. Absts. 7, 

 Entry 939.)] Zeitschr. Pflanzenziicht. 7: 338. Nov., 1920. 



1712. Anonymous. [German rev. of: Tjebbes, K., enH. N. Kooiman. Erfelijkheidson- 

 derzoekingen by boonen. III. Albinisme. (Hybridization experiments with beans. III. 

 Albinism.) Genetica 1 : 532-538. 1 pL, S fig. Nov., 1919. (See Bot. Absts. 6, Entry 1135.)] 

 Zeitschr. Pflanzenziicht. 7: 338. Nov., 1920. 



1713. Anonymous. [German rev. of: von Ubisch, G. Anwendung der Vererbungs- 

 gesetze auf die Kulturpfianzen. (Application of the laws of heredity to cultivated plants.) 

 Naturwassenschaf ten 8 : 293-300. 1920.) Zeitschr. Pflanzenziicht. 7: 339. Nov., 1920. 



1714. Anonymous. [German rev. of: Urban, J. Die Grosse der Rvibenknauel und der 

 Riibenertrag. (Size of the beet seed-balls and the yield of beets.) Zeitschr. Zuckerind. 

 Cechoslovak. 44:151-155. 1920.] Zeitschr. Pflanenziicht. 7:339. Nov., 1920. 



1715. Anonymous. [German rev. of: White, O. E. Inheritance studies in Pisum. IV. 

 Interrelation of the genetic factors of Pisum. Jour. Agric. Res. 11:167-190. 1917. (See 

 Bot. Absts. 1, Entry 1315.)] Zeitschr. Pflanzenzucht. 7: 340. Nov., 1920. 



1716. Anonymous. [German rev. of: White, O. E. The present state of knowledge of 

 heredity and variation in peas. Proc. Amer. Phil. Soc. 56: 487-588. 1917.] Zeitschr. Pflan- 

 zenzucht. 7: 339. Nov., 1920. 



1717. Anonymous. [German rev. of: Zaleski, Leopold. Wkwestj'i metod anality- 

 ernych w selekcjii burakow pastewnych. (Contribution to the analytical method in fodder-beet 

 breeding.) Ziemianin Poscn, 1920.] Zeitschr. Pflanzenzucht. 7:340. Nov., 1920. 



1718. Anonymous. [German rev. of: Zinn, Jacob. On variation in Tartary buckwheat, 

 Fagopyrum tartaricum (L) Gaertn. Genetics 4: 534-586. 11 fig. Nov., 1919.] Zeitschr. 

 Pflanzenziicht. 7:340. Nov., 1920. 



1719. Babcock, Ernest B., and Julius L. Collins. Interspecific hybrids in Crepis. 

 I. Crepis capillaris (L) Walh. X Crepis tectorum L. Univ. California Publ. Agric. Sci. 2: 

 191-204. PI.S6-S8. 1920. — 'Reciprocal crosses were made between Crepis capillaris v^hichhas 

 three pairs of chromosomes and C. tectorum which has four pairs. The Fi's showed dominance 

 of the tectorum cotyledon characters as well as hybrid vigor, but did not survive beyond the 

 cotyledon stage. Cells of the root tips of the Fi seedlings contained seven chromosomes, 

 the sum of the haploid numbers of the two species. Examination of a young Fi seedling which 

 had reached the limit of development revealed an unusual teratological cell condition. This 

 interruption of the functioning systems, which causes the premature death of the plant, is 

 regarded as evidence against the hj^pothesis that C. tectorum originated by non-disjunction 

 of one pair of the capillaris chromosomes. — C. B. Hutchison. 



1720. Bannier, J. P. [Dutch rev. of: Correns, C. Die geschlechtliche Tendenz der 

 Keimzellen gemischtgeschlechtiger Pfianzen. (Sex tendency of germ-cells in plants of mixed 

 sex.) Zeitschr. Bot. 12 : 49-60. 2 fig. 1920.] Genetica 2: 451-452. Sept., 1920. 



1721. Bannier, J. P. [Dutch rev. of: Coulter, Merle C. Inheritance of aleurone color 

 in maize. Bot. Gaz. 69: 407-425. May, 1920. (See Bot. Absts. 5, Entry 1477.)] Genetica 2: 

 452-453. Sept., 1920. 



