THE CAUSES OF THE DECLINING BIRTH RATE 151 



Ages at Marriage of Workmen in York 



Age when Married 



Under 20 

 20-22 . 



23-25 • 

 26-30 . 



31-35- 

 36-40. 



41-45 • 

 46-50 . 



Over 50 . 



Percentage of Marriages among Workers 



That the fertility of different classes is not caused entirely by 

 the greater duration of marriage of the people who marry at an 

 earlier age is indicated by the English statistics on the fecundity 

 of marriages of different durations in the different groups. Mar- 

 riages of a given degree of duration from two years up to thirty 

 show uniformly a much higher fertility among the laborers than 

 among the professional classes. 



Fecundity According to Duration of Marriage of Followers of Different 



Occupations 

 (British Census of igii) 



General Population 



Coal-miners 



Agricultural laborers . , . . 



Boilermakers 



Farmers 



Carpenters 



Cotton spinners 



Cotton weavers 



Nonconformist ministers 

 Clergymen (C. of E.). . . 



Teachers 



Doctors 



All dura- 

 tions 



0-2 yrs. 



100. 

 126. 



113- 

 no. 

 100. 



QS 



91. 



81. 



79 

 72 

 70 

 64 



e 

 "S 

 "5 



s 

 Co 



100. 



120. 

 119, 

 107 . 

 109, 

 98 



86, 



76 



8s 



82 



76 



72 



100 

 128 

 123 

 no 



95 

 97 

 95 

 83 

 68 



72 



S8 

 85 



100 



126 



124 



108 



98 



99 



91 



80 



71 

 75 

 70 

 90 



z-s ys 



100 

 120 



115 



108 



107 



97 



86 

 80 

 92 



87 

 75 

 83 



100 

 n6 



113 

 107 

 112 

 99 

 83 

 78 

 97 

 93 

 79 

 89 



S-io 

 yrs. 



100 

 124 



115 

 no 

 108 

 95 

 89 

 77 

 81 

 84 

 74 

 78 



100 



n8 



119 



108 



IIS 



98 



84 



73 



85 



93 



80 



84 



lo-is 

 yrs. 



100 

 128 



114 

 no 



lOI 



95 

 92 

 79 

 79 

 73 

 70 

 64 



100 

 112 



119 

 107 

 no 

 98 

 86 

 75 

 8s 

 83 

 76 

 72 



15-20 

 yrs. 



100 



130 



115 



in 



98 



95 



93 



84 



76 



67 



68 



57 



100 



123 



122 



108 



107 



99 



87 



79 



82 



75 



74 



64 



20-25 

 yrs. 



100 



126 



no 



no 



94 



95 



97 



8S 



79 



58 



66 



52 



TOO 

 120 



119 

 107 

 104 

 100 



91 

 81 



84 

 67 



73 

 60 



25-30 

 yrs. 



100 



120 



los 



n6 



8s 



98 



96 



89 



92 



63 



74 

 56 



100 

 116 



US 



107 



97 

 100 

 96 

 81 

 92 

 71 

 80 



59 



