SS THE RELATIVE STREN^GTH OF 



effect on the physique and Intelligence of the children 

 has yet to be proved. 



The whole subject of the influence of environ- 

 ment, owing to its complexity, is a fascinating one, 

 partly because we are only just beginning to apply 

 modern statistical methods to this side of eugenics, 

 and the results we obtain are often very unexpected, 

 perhaps we may say w^holly contrary to current 

 belief. 



The fact that our conclusions as to the compara- 

 tive unimportance of the environment factors of 

 employment of mothers, occupation of fathers and 

 drink of the parents are contrary to preconceived 

 opinions, makes more work and more statistics on 

 this side of eugenics most necessary. 



We now come to the last point under considera- 

 tion — the effect of the home environment on the 

 intelligence, eyesight, glands and hearing of the 

 children. The statistics being taken from the C.O.S. 

 Report. The home environment factors we have 

 chosen are : 



(a) The number of people per room of the 

 home. Unfortunately we do not know the size of 

 the rooms, but in a general way we have a measure 

 of the space in the home by considering the number 

 of people per room. 



(d) Economic condition of the home. We 

 divided the homes into ''good" and "bad" from 

 a consideration of the information given in the 

 C.O.S. "Summary of Facts," and took into account 

 also the cleanliness of the children, regularity ot 

 attendance, &c. 



