THE FALL OF THE BIRTH-RATE 25 



marriage compare for example the pairs of figures 

 for class i , for miners, and for the class of agricul- 

 tural labourers. 



Interesting though these figures are, they do not 

 throw any light on the question whether such differ- 

 ences between social or occupational classes have been 

 increased by the fall in the birth-rate : they only show 

 that striking differences at present exist. Table VII 

 of which the data respecting 1871 and 1901 have 



TABLE VII. 

 Fertility in London. 



Female 

 domestic 



sen-ants Tait't coefficient 



per looo ^- ^ 



1901 1871 1901 1911 



166 1-52 i -06 i ii 



Percentage 

 change 



1871 1901 



to to 



1901 1911 



-30 +5 



Ditrict 

 Hampstcad 



-ington and 

 Paddington 



Isea 



St Marylebone 

 Lambeth 

 St Pancras 

 Islington 

 Camberwell 

 Southwark 

 Poplar 

 Bermondsey 

 Shored it 

 Bethnal Green 



been extracted from a table in my paper of 1905 (ref. 

 6), does something towards giving an answer. It 

 shows the values of Tail's coefficient, as a measure of 

 ^ it v, tor thirteen di>t nets of London in 1871, 1901 

 and K)ii. It was unfortunately impossible to give 

 more districts because in 1871 occupations were 

 classified by Registration Districts, and in 1901 and 

 iuii by Metropolitan Boroughs, so a comparison 

 could only be made when the Borough was coter- 

 \siih a Registration Di-tiK-t, m \\ith two or 



