No. 2, September, 1920] 



GENETICS 



189 



1427. Anonymous. Report of the work of the plant breeding division for 1919. Jour. 

 Dept. Agric. Ireland 20: 102-107. 1920. — This report contains a brief summary of the work 

 on wheat, barley, oats, flax and rye grass. It is stated that several new forms of spring wheat 

 have been developed from a cross between Red Fife and April Red. It is planned to Bilbfil i- 

 tute one of these new forms for Red fife. — Hybrid barleys are compared with their parents and 

 indicate slight increases in yield in some cases with deviations in others. Single plant selec- 

 tions were made in a crop sown with commercial Riga flax seed. The progeny of each of these 

 selected plants was found to be remarkably uniform, not only in botanical characters but also 

 in physiological characters such as resistance to frost, period of growth and vigor. The two 

 progenies were found to be superior to the others and the propagation of them was con- 

 tinued. Twenty acres were sown from the two superior progenies and the plants showed great 

 uniformity of growth. — In addition to these two selections, further selections were made from 

 Riga flax and of these last selections two appear superior to the best two of the first selection. 

 — Selections were also made of white-flowered and Kostroma flax. The results of these selec- 

 tions are not reported. — Single plant selections are being made in Perennial and Italian rye 

 grass but no report of the success of this work is given. — J. H. Kempton. 



1428. Anonymous. Daffodil breeding. Florists' Exchange 49: 1082. May 8, 1920.— 

 Notes on daffodil breeding in America and England. Finest English daffodils are raised by 

 S. Goodell of Seattle, Washington, from crossing English varieties. Some flowers measure 

 11 cm. and display exquisite coloring. Author describes choice collection of seedlings (red 

 cups and red eyes) shown at Royal Horticultural Society's Daffodil show in London on April 

 13, raised by Mrs. R. O. Backhouse. Prices for best new seedlings range from $250 per bulb 

 to $100 or less. — Orland E. White. 



1429. Anonymous. 

 Jan., 1920. 



1430. Anonymous. 

 11:6. Jan., 1920. 



1431. Anonymous. 

 Jan., 1920. 



1432. Anonymous. 



1433. Anonymous. 



A new dahlia of interest to plant breeders. Jour. Heredity 11: 48. 

 The heredity and environment of a great botanist. Jour. Heredity 



University wants photographs of twin calves. Jour. Heredity 11: 15. 



A genetic association in Italy. Jour. Heredity 11: 45. Jan., 1920. 

 New eugenics society in Hungary. Jour. Heredity 11: 41. Jan., 



1020. 



1434. Anonymous. The birth rate in mixed marriages. Jour. Heredity 11: 96. Feb., 



1920. 



1435. Anonymous. 



1436. Anonymous. 



1437. Anonymous. 



1438. Anonymous. 

 10:275. June, 1919. 



1439. Anonymous. 

 1919. 



Eugenics in Germany. Jour. Heredity 11: 110. Mar., 1920. 

 Eugenics in Scandinavia. Jour. Heredity. 11: 128. Mar., 1920. 

 Eugenics and other sciences. Jour. Heredity 11: 77-78. Feb., 1920. 

 A common misconception concerning human heredity. Jour. Heredity 



A factor influencing the sex-ratio. Jour. Heredity 10: 256. June, 



1410. Anonymous. Measuring intelligence. Jour. Heredity 11: 86-87. 1 fig. Feb., 



1920. 



1441. Anonymous. 

 number of brain cells. 



Deficiency in intellect found to be correlated with deficiency in the 

 Jour. Heredity 10: 369. Nov., 1919. 



