NURTURE AND NATURE 



19 



result on the child of the mother's work will probably 

 be due to the inferior physique of her husband. 



There is another point in this connection I should 

 like to mention. If employment of mothers has a 

 bad effect on their sons, either directly before birth 

 or indirectly owing to less home care, there ought 

 to be less bad effect when the mother only works 

 out part of the day than when she works out the 

 whole of the day ; but this is not the case, at least it 

 is not the case in Edinburgh in those families investi 

 gated by the C.O.S. From this report we are able 

 to divide the mothers into four classes: (i) those 

 who do no work beyond their domestic duties, 

 (2) those who work in their homes, (3) those who 

 work out part of their time, (4) those who work out 

 the whole of their time. The diagram shows the 



Weight of Boys at a Constant Age. 



56 



None At home Part out Whole out 



Employment of Mothers. 



average weight of the boys for a constant age, i.e. the 

 mean age 9 "6 years. The mean weight of the boys 

 is practically identical whether the mother works out 

 all or only part of the time. 



When the mother works " in " the weight of the 

 boys is lowest, but there are only 31 cases, so we 



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