J. W. H. Harrison 



73 



From pairings in which families a and b took part, along with others 

 utilised in the preceding section of the work, broods were reared which 

 gave statistics embodied in the following tables. 



TABLE VIII. 



Heterozygous Melanic x Heterozygous Melanic {^Mm x Mm). 



Family 



Melsnics 



Types 



Parentage 



a'^ xa ^ 

 b^ xa ^ 

 fe? xb^ 

 h^ xb.^ 



Actually reared 

 'I'heoretical result 



162 

 162 



100 

 100 



TABLE XL 



Homozygous Melanic x Homozygous Type (MM x mm). 



Melanics 



Types 

 Males Females Totals 



Percentage 

 Melanic 

 100 

 100 

 100 

 100 



100 

 100 



