10 GENETICS [Box. Absts. 



in F2 in 3: 1 ratios. No homozygous green plants with ''red" [lowers were found. In off- 

 spring derived from green plants with red flowers leaf color always segregated into green and 

 yellow, while segregation of flower color gave "reds" to dark reds as 2:1. Author assumes 

 that in presence of a gene D, flower is dark red or some other color according as green factor 

 G is in either homo- or heterozygous condition (or absent). Fi hybrids (GgDd) thus always 

 bear flowers of red ( = magenta) color. — E. E. Barker. 



5S. Molz. Uber die Ziichtung widerstandsfahiger Rebsorten. [On the breeding of resist- 

 ant varieties of grapes]. Jahrb. Deutsch. Landswirts. Ges. 33: 166-204. 1918. 



59. Moore, Carl R. On the physiological properties of the gonads as controllers of 

 somatic and psychical characteristics. I. The rat. Jour. Exp. Zool. 28: 137-160. 5 fig. May 

 20, 1919. 



60. Mtjrbeck, Sv. En saregen blomanomali hos Capsella bursa-pastoris. [Abnormal 

 flowers in Capsella bursa-pastoris.] Ark. Bot. 15'- : 1-8. 1 fig. July 25, 1918.— See Bot. 

 Absts. 3, Entry 274. 



61. Remlinger, P. Contribution a l'etude de 1'immunite hereditaire contre la rage. 

 [Contribution to the study of hereditary immunity against rabies.] Compt. Rend. Soc. Biol. 

 Paris 82: 141-144. 1919. — Rabbits whose parents either were naturally immune to rabies or 

 h:ul been inoculated were subjected to one, two, three, or four inoculations in muscles of neck 

 or under dura mater. Others from parents not immune were similarly treated. Rate of 

 mortality was only slightly lower among children of immune parents than among controls, 

 indicating little or no inheritance of immunity. — A. Franklin Shull. 



62. Renner, O. Oenothera Lamarckiana und die Mutations-theorie. [Oenothera La- 

 marckiana and the mutation theory.] Die Naturwiss. 1918: 1-25. 1918. 



63. Renner, O. Weitere Vererbungsstudien an Oenotheren. [Further genetical studies on 

 Oenotheras.] Flora 11, 12 (Festschr. Stahl) : 641-667. 1918. 



64. Roberts, H. F. Quantitative character-measurements in color crosses. Science 49: 

 516-517. May 30, 1919. 



65. Roberts, Herbert F. The founders of the art of breeding. Jour. Heredity 10: 99- 

 106. 4 fig- Mar., 1919. 



66. Rosenberg, Otto. Chromosomenzahlen und Chromosomendimensionen in der Gat- 

 tung Crepis. [Chromosome number and chromosome dimensions in the genus Crepis.] Ark. 

 Bot. 15 u : 1-16. 6 fig. 1918. 



67. Rumker, K. von. Die Ziichtung der Olpflanzen. [The breeding of oil-plants.] Jahrb. 

 Deutsch. Landwirts. Ges. 33: 150-158. 1918. 



68. Russell, E. S. [Rev. of: H. F. Osborn. Origin 0' single characters as observed in 

 fossil and living animals and plants. (Origine de caracteres particuliers, telle qu'on 1 'observe 

 chez les animaux et les plantes fossiles et vivants). Araer. Nat. 49: 193-240. 10 fig. 1915.] 

 Scientia 25: 323-325. 1919. 



69. Sakamura, Tetsu. Kurze Mitteilung uber die Chromosomenzahlen und die Ver- 

 wandtschaftsverhaltnisse der Triticum-Arten. [Brief contribution on the chromosome num- 

 bers and the relationships of Triticum species.] Bot. Mag. Toky6 32: 151-151. 191S. 



70. Schouten, S. L. [Rev. of: Pas CHER, A. Studien uber die rhizopodiale Entwicklung 

 der Flagellaten. [Studies on the rhizopodial development of Flagellates.] Arch. Protistenkunde 

 36:81-136. 1916. Genetica 1 : 205-206. Mar., 1919. 



