No. 2, November, 1920] GENETICS 97 



(iss. Km n, L. Uilkomsten van eenige selectienproeven met padi. [Results with some 

 selection experiments with rice.) Korte Ber. uitgaande van den LandbouwvoorlichtingS- 

 dienst van hct Departement van Landhouw, Nijverhoid en Eandel. Selectie — en Zaadtuin 

 te Buitenzorg. No. 21. 16 p. July, 1919. — In the last series of trials made in 1916-1919, 

 pure strains were in 4 cases compared with the original population and wit h mixtures of pure 

 strains. In 6 out of 10 trials the strains yielded more than the population. In 8 out of 1<) 

 trials the mixture of pure strains yielded more than the population. In 7 out of 10 trials 

 the mixture of pure strains yielded more than the pure strains planted singly. — All trials 

 combined the conclusion is reached, that pure strains may in some cases yield more than the 

 population but almost always in later years t lie former fails in superiority to the latter. Pure- 

 line breeding is unsatisfactory under such variable conditions as found in Java for the annual 

 crops here considered. — L. Koch. 



GS9. Kooiman, II. N. Eenige opmerkingen naar aanleiding van Lotsy's artikel, "De Oeno- 

 theren als kernchimeren." [Remarks on the introduction of Lotsy's article "The Oenotheras 

 as nuclear chimeras."] Genetica 2: 235-243. May, 1920.— See Bot. Absts. 6, Entry 1092. 



690. Kooiman, H. N. [Dutch rev. of: Collins, E. J. Sex segregation in the Bryophyta. 

 Jour. Genetics 8: 139-146. PI. 6, 5 fig. June, 1919. (See Bot, Absts. 3, Entry 2103.)] 

 Genetica 2: 253. May, 1920. 



691. Kooiman, H. N. [Dutch rev. of: Fruwirth, C. Die Umziichtung von Winterge- 

 treide in Sommergetreide. (The breeding of winter cereals into spring cereals.] Zeitschr. 

 Pflanzenzucht, 6: 1-46. Mar., 1918. (See Bot, Absts. 1, Entry 1204; 2, Entry 935.)] 

 Genetica 2: 255. May, 1920. 



692. Kooiman, H. N. [Dutch rev. of: Harland, S. C. Inheritance of certain characters 

 in the cowpea (Vigna sinensis). Jour. Genetics 8: 101-132. 1 fig. April, 1919. (See Bot. 

 Absts. 3, Entry 1003.)] Genetica 2: 259-260. May, 1920. 



693. Kooiman, H. N. [Dutch rev. of: von Tschermak, E. Bastardierungsversuche mit 

 der griinsamigen Chevrier Bohne. (Hybridization studies with the green-seeded Chevrier 

 bean.) Zeitschr. Pflanzenzucht. 7: 57-61. June, 1919.] Genetica 2: 277-278. May, 1920. 



694. Kratjse, K. [German rev. of: Bally, Walter. Die Godronschen Bastarde Zwi- 

 schen Aegilops- und Triticumarten. Vererbung und Zytologie. (The Godronian hybrids be- 

 tween species of Aegilops and Triticum. Heredity and cytology.) Zeitschr. indukt, Abstamm. 

 Vererb. 20: 177-240. 4 fig. Feb., 1919.] Bot. Jahrb. 56: 5-6. 1920. 



695. Krause, K. [German rev. of: Lehmann, Ernst. Uber die Selbststerilitat von 

 Veronica syriaca. (On the self sterility of Veronica syriaca.) Zeitschr. indukt. Abstamm. 

 Vererb. 21: 1-47. 1 fig. May, 1919. See Bot. Absts. 3, Entry 2159.] Bot. Jahrb. 56: 6. 

 1920. See also Bot. Absts. 6, Entry 686. 



696. Latjghlin, Harry H. Illustrating the structure and mathematics of the human germ- 

 plasm. Jour. Heredity 11: 1S5-189. 1 fig. April, 1920. 



697. Lehmann, Ernst. Neure Oenotherenarbeiten. (Sammelreferat II.) [New work 

 with Oenothera. (Composite review II.)] Zeitschr. Bot. 12: 61-85. 14 fig. 1920. 



698. Lehmann, E. [German rev. of: Correns, C. Die Absterbeordnung der beiden 

 Geschlechter einer getrenntgeschlechtigen Doldenpflanze. (Trinia glauca) (Order of death of 

 the two sexes in a dioecious umbel wort (Trinia glauca;.) Biol. Zentralbl. 39: 105-122. 3 fig. 

 Mar., 1919. (See Bot, Absts. 3, Entry 2105.)] Zeitschr. Bot. 12: 86. 1920. 



