488 



Asstortatire Mating in Mau 



(8) Fol- only a certain portion of the Yorkshire material 662 out of the 876 

 pairs liarl A, llic interval between tlu- births of hiisbaiiil and wifo, been recorded. 



Cüiiiparing the Yorkshire and Oxfordshire data we have in years : 



Thiis the north countryman has on the average abont "9 years more seuiority over 

 his wife than the Oxfordshire man. His wife might therefore be expccted to 

 survive him by a period longer by -9 years than in Oxfordshire, but the difference 

 in this respect is only -24 years. 



We place together here our wholo data for lenglh uf life and its variability in 

 the four series, the year being unit : 



We See froni this table that : 



(a) The rural niarried population has sensibly longcr diiration of life than the 

 London series, or tlian the Friends' series, which undoubtedly contains many urban 

 dwellers. 



{b) The male is in every series louger lived than the female. 



This is a result of very considerablc interest, for in the country at largo, and 

 even in selected series, the duration of lifo of the female is greater than tiiat of the 

 male*. We are therefore compelled to conclude that the ad van tage of the woman 

 lies in the unmarried mcnibers of the Community. The married woman lives 

 longer than the unmarried woman. as the married man lives longcr than the 

 unmarried man. Hut the life of the Single woman is .so nuu-h better than that 



* Biometrika, Vol. i. pp. 53 and 60. 



