No. 2, September, 1920] GENETICS 193 



among many hundred wingless ones; reined at temperature of 60" to 70°F. large numbers of 

 winged forms appeared. "In entire 55 generations no males appeared." — Cereal crops: 

 Author states Kanred winter wheat is markedly resistant to cold and certain strains of stem 

 rust. Kansas Nos. 2414 and 2415 exhibit similar resistance. — Hessian fly seldom lays eggs 

 on "oats, barley, einkorn, spring emmer, and durum wheat, and less abundantly on soft than 

 on hard winter wheats." Very few "flax seeds" were developed on wheat varieties, lllini 

 Chief, Dawson Golden Chaff, Beechwood Hybrid, and Currell Selection, although eggs were 

 laid on them "in abundance." — Swine: Following tendencies have been noted: (1) Wide 

 Berkshire forehead is dominant over medium forehead of Duroc Jersey and narrow forehead 

 of Tamworth and wild hog, (2) Berkshire dish of face is recessive to straight face of Tarn- 

 worth and wild hog, (3) Berkshire short face is completely recessive to Tamworth long face, 

 (4) Erect ear of Berkshire is dominant over drooping ear of Duroc Jersey. — Apparently there 

 are distinct hereditary differences between Berkshire and Duroc Jersey with respect to size, 

 rate of growth and early maturity." — Fred Griffee. 



1467. Card, W. H. Originating and standardizing a new variety of Cornish. Reliable 

 Poultry Jour. 26: 647, 672, 725, 748, 749, 817, 857, 858, 927, 975, 976. 8 fig. 1919.— An account 

 of the origin of the White Laced Cornish fowl, by its originator, a practical breeder. — H. D. 

 Good ale. 



1468. Carle, E. Selection pedigree appliquee a la variete de riz "Nang Meo." [Pedigreed 

 selection applied to the variety of rice known as "Nang Meo."] Bull. Agric. Inst. Sci. Saigon. 

 2 : 73-78. 1920. 



1469 Cohen-Stuart, C. P. A basis for tea selection. Bull. Jard. Bot. Buitenzorg. Ill, 

 1: 193-320. 1919. — A comprehensive study of the origin, distribution and cultivation of tea. 

 The systematic treatment of the genus Camellia is thoroughly discussed and a synoptic key 

 is given for the determination of the various species. There is appended also a list of the 

 specimens contained in the herbaria of Kew T , Buitenzorg, Singapore and Berlin. This article 

 comprises the first of three sections of a paper on selection of tea. — J. H. Kempton. 



1470. Cole, Leon J., and Heman L. Ibsen. Inheritance of congenital palsy in guinea- 

 pigs. Amer. Nat. 54: 130-151. Mar-Apr., 1920.— A definite neurosis (congenital palsy), 

 characterized by clonic spasms, particularly of the legs, appeared in stock of normal guinea- 

 pigs. All affected animals die at or before two weeks after birth. Defect is due to Mendelian 

 recessive. DR X DR gave 183 normal, 63 palsied. Tested normals from this mating gave 

 7 DD and 15 DR. Variations of symptoms are noted and discussed. Defect is due to a factor 

 mutation, cause unknown. Comparison is made with certain hereditary motor disturbances 

 in pigeons, mice, rats, rabbits, goats, sheep, man and progeny of alcoholized guinea-pigs, 

 none of which cases are considered identical with congenital palsy observed by the writers. — 

 C. C. Little. 



1471. Cole, Leon J. An early family history of color blindness. Jour. Heredity 10: 

 372-374. / fig. Nov., 1919. 



1472. Collins, G. N., and J. H. Kempton. Heritable characters of maize. I. Lineate 

 leaves. Description and classification of lineate plants — value of maize as material for investi- 

 gation, and economic importance of discovering latent variations. Jour. Heredity 11: 3-6. 

 Jan., 1920. 



1473. Cook, O. F., and Robert Carter Cook. Biology and government. Further dis- 

 cussion of Alleyne Ireland's article on democracy and the accepted facts of heredity. Jour. 

 Heredity 10: 250-253. June, 1919. 



1474. Cook, O. F. A disorder of cotton plants in China: Clubleaf or cyrtosis. Jour. 

 Heredity 11: 99-110. 9 fig. Mar., 1920. 



