R. C. PUNNETT 95 



doubtful, as at present, it is difficult to suggest any scheme by which 

 this result could be brought about, and the problem must at present 

 be left in the hope that fresh data may eventually lead to its solution. 



LITERATURE. 



(Papers dealing with cases in wliich the phenomena of "coupling'' and "repulsion" 

 are met with, but in which sex-limited inheritance is not involved.) 



1. Bade, E. "Vererbungs- und Bastardierungsversuche mit Antirrhinum; 



II. Faktorenkoppelung." Zeit. f. ind. Abst. u. Vererb. 1912. 



2. B.iTESON, AV., Saunders, E. E., and Pdxnett, R. C. "Experimental Studies 



in the Physiology of Heredity." Report III, EvoL Coimn. Roy. Soc. 

 1906. 



3. . Report IV, Evol. Comm. Roy. Soc. 1908. 



4. Bateson, W., and Pdnnett, R, C. "On the Inter-relation of Genetic 



Factors." Proc. Roy. Soc. 1911. 



5. . " On Gametic Series involving Reduplication of certain Terms." 



Journal of O emetics, 1911. 



6. Collins, G. N. "Gametic Coupling as a cause of Correlations." Atiier. 



Nat. 1912. 



7. Emerson, R. A. " Genetic Correlation and Spurious Allelomorphism in 



Maize." Twenty-fourth Ann. Rep. Nebraska Agric. Exp. Stat. 1911. 



8. Gregory, R. P. " On Gametic Coupling and Repulsion in Primula sinensis.^' 



Proc. Roy. Soc. 1911. 



9. Hagedoorn, a. L. " The Genetic Factors in the Development of the House- 



mouse, &c." Zeit. f. ind. Abst. tt. Vererb. 1912. 



10. Keeble, F. W., and Pellew, C. "The Mode of Inheritance of Stature and 



of Time of Flowering in Peas." Journal of Genetics, 1910. 



11. Morgan, T. H. "Complete Linkage in the Second Chromo.some of the 



Male of Drosophila." Science, 1912. 



1 2. PuNNETT, R. C. " Inheritance of Coat-Colour in Rabbits." Journal of 



Oenetics, 1912. 



1 3. Saunders, E. R. " Further experiments on the Inheritance of ' Double- 



ness' and other Characters in Stocks." Journal of Oenetics, 1911. 



14. Sturtevant, a. H. "The Linear Arrangement of Six Sex-linked Factors 



in Drosophila, as shown by their Mode of Association." Journ. Exp. 

 Zool. 191.3. 



15. Trow, A. H. "On the Inheritance of Certain Characters in the Common 



Groundsel, &c." Journal of Oenetics, 1912. 



16. . "Forms of Reduplication; Primary and Secondary." Journal of 



Oenetics, 1913. 



1 7. DE ViLMORiN, P., and Bateson, AV. "A Case of Gametic Coupling in Pi-sum." 

 Proc. Roy. Soc. 1911. 



7—2 



