NURTURE AND NATURE 



effect of drink, the Edinburgh Charity Organization Society Report 

 and the statistics provided for us by Miss Dendy. 



We will consider first the results obtained from the Edinburgh 

 statistics, which are given in the next table. 



TABLE IV. 



Here we see that drink in the parents has no effect on the intel- 

 ligence of boys or girls, and practically none on the height and weight 

 of boys. In the case of girls there is a very slight correlation between 

 drinking of the parents and lower weight and- height in the daughters, 

 but considering that the probable error of these results is about -03 

 they are only just significant. Is this slight difference between the 

 effect of drink on boys and girls due to the possibility that when the 

 mother drinks the girls have to look after the home, whereas the 

 responsibilities of the boys are not increased? But, whatever the 

 reason, we would emphasize the fact that a correlation of -09 is of 

 very little importance as compared with a correlation of -50 due to 

 heredity. 



Before considering these results further we may turn to the 

 statistics obtained from the special schools in Manchester. Here we 



TABLE V. 



cannot find the correlation coefficients between drink and actual 

 height and weight of the children, but we can find the coefficient of 

 correlation between drink and general health, and between drink and 



