NOTE VI 241 



segregated, on the contrary, must be the co-operative 

 mixture formed by the combination in exactly 

 co-operative quantities of the male and female 

 reproductive materials. This mixture must ob- 

 viously determine the general nature of the new 

 organism; while the surplus may perhaps deter- 

 mine sex, and the traits appertaining to that sex. 

 Future research and experiment may convert this 

 probability into a certainty. 



