L'HEREDITE. 311 



Detlefsen (J. A.) and Roberts (E.). Studies oncrossing ovcr. I. Theeffect 



of slection on crossover values. (Journ. of exp. Zool.. XXXII, 333-354, 1921.) 



' [314 



Durham (G. B.). Inhcritance of beltn/ spotting in Caille and Sirine. 

 (Amer. Natur., LV, 476-477, 1921.) [314 



a) Frost (Howard B.). An apparent case of Somalie sgrgation invol- 

 ving two linked factors. (Amer. Natur., LV, 461-464, 1921.) [317 



b Genetic terminology. (Amer. Natur., LV, 567-570, 1921.) 



[Remarque sur une note de G. 0. Shull. L. Cunot 



Goodrich (Edwin S.). Some problems in Evolution. (Report of the British 

 Assoc. for Adv. of Sciences, Edinbourgh, LXXXIX, 75-85, 1921.) [311 



Ives (J. D.t. Cross-over values in the fruit-fly, Drosophila ampelophila, 



when the linked factors enter in diffrent ways. 'Amer. Natur.. LA", 571- 

 573, 1921.) [314 



Jones (D. F.). Collins's remarks on the vigor of flrsl gnerai ion hybrids. 

 (Amer. Natur., LV, 457-461, 1921.) [317 



Lippincott (William A.). Furthcr dota on the inheritanec of bine in 

 poultry. (Amer. Natur., LV, 289-327, 1921.) [316 



Loeb (Leoi. Inheritanec of cancer in Mice. (Amer. Natur., LV, 510-528. 

 1921.) [313 



Lynch (Clara J.). Short ears an autosomal mutation in the house Mouse. 

 (Amer. Natur., LV, 421-426, 1921.) [317 



Mac Dowell (E. C.) and Vicari (E. M.). Alcoholism and the behavior 

 of white rats. I. The influence of alcoholic grand-parents upon maze beha- 

 vior. (Journ. Exper. Zool., XXXIII, 209-292, 17 fig., 1921.) [312 



Marinesco (G.). Les rapports de l'hrdit avec la biochimie et la chimie 

 physique. (Revue Scient., LX, 321-329, 1922.) [312 



Payne (Fernandus) and Denny (Martha). The heredity of orange eye 

 color in Drosophila melanogaster. (Amer. Natur., LV, 377-381, 1921.) [316 



Plough (Harold H.). Further studies on the effect of temprature on 

 crossing-over (Journ. Exper. Zool., XXXII, 187-202, 3 fig., 1921.) [315 



Shull (George H.) and Castle (W. E.). Estimating thenumber ofgenctic 

 factors concerned in blending inlteritance. (Amer. Natur., LV, 556-567, 1921.) 



[Polmique et thorique. L. Cunot 



Wachter (W. L.1. Data concerning linkage in Mice. (Amer. Xatur., LV, 

 412-420, 1921.) [317 



Zeleny (Ch.). The direction and frequency of mutation in the bar-eye s- 

 ries of multiple allelomorplis of Drosophila. (Journ. Exper. Zool., XXXIV, 

 203-233, 5 fig., 1921.) [315 



a) Gnralits. 



Goodrich (Edwin S.). Quelques problmes de rvolution. La plupart 

 des controverses au sujet de l'hrdit viennent de ce que les auteurs ont 

 employ ce terme dans des sens diffrents. Pour G., hrdit doit signinea* 



