J. 13. S. Haldane, a. D. Sprunt and N. M. Haldane 135 



Conclusion. 



Reduplication of the "repulsion" type, probably on the ba.sis 

 1:3:3:1, occurs between the colour factors in mice named by Miss 

 Durham (2) C and E, by Hagedoorn (3) A and E. 



REFERENCES. 



1. Darbishire. Biomelriica, Vol. in. p. 1, 1904. 



2. Durham. Reports to Evolution Committee of the Royal Society, iv. 1008. 



Jounuxl of Oeiietics, Vol. I. No. 2, 1911. 



3. Hagedoorn. Zeitschrift fur induktioe Abstammtings- und Vererbu/igsle/ire, 



Vol. VI. Xo. 3, 1911. 



