Births of the two Sexes. 



93 



in 



c 



0$ 



^ 

 O 





5 G 





00 



CO 

 Oi 



CO 



00 



CO 1-1 

 00 Oi 



to 00 



Oi o 



Oi 00 

 t- CO 



»o '^ 

 to t^ 



a> 



11 

 II 





5 = 



I 





•S S « • 

 ■^ -^ -a J 



, "^ 8 tJ >^ 



is S *. ^ r: 



'naaig 



so 



to 



Oi 



to 



Oi 



o 



CO 



t- 



Oi 



00 



00 



o 



CJi 



Oi 

 CO 



00 



cc 

 o 



00 



Oi o 



00 00 



^ CO 



CM GO 



r- CO 



00 o 



C^ 00 



CM CM 



00 CO 



o 

 to 



o 

 00 



