Accurate and minute measurement seems to the non-scientific 

 imagination a less lofty and dignified work than looking for 

 something new. But nearly all the grandest discoveries of 

 science have been but the rewards of accurate measurement and 

 patient, long-continued labour in the minute sifting of numerical 

 results. — Lord Kelvin. 





Eugenic Laboratory Lecture Series III, The Relative Strength 

 of Nurture and Nature, contains a fuller statistical treatment 

 of the topic of the present lecture. 



