242 The Inheritance of Wing Colour in Lepidoptera 



pairing a white to a yellow lacticolor, the above explanation seems 

 probable. The question is however doubtful and the experiments are 

 being continued with a view to elucidating the problem. 



I am indebted to Mr Raynor and Dr Doncaster not only for the 

 material they have given me but for much kind help throughout the 

 experiments and in preparing the paper. To Prof. Punnett I am also 

 grateful for encouragement and advice throughout the experiments. 

 Mr Udny Yule has been kind enough to give me the benefit of his 

 advice and opinion on the statistical points of the paper. I am especially 

 indebted to Miss Moodie for her constant care of the larvae, etc. during 

 several years, for without her cooperation the experiments would not 

 have been possible. 



