94 Social Environment 



to make assurance double sure, the problem 

 was reworked from the data compiled in 

 Cattell's American Men of Science.^ In this 

 volume Dr. Cattell has listed, after a most care- 

 ful process of selection, the thousand foremost 

 American leaders in science, and has succeeded 

 in compiling a work of recognized authority. 

 Only one objection can be made to the use of 

 the last two books; namely, that the number 

 of names included is relatively small, making 

 a correlation more difficult to discover. But 

 certainly any principle that might be estab- 

 lished on the concurrent authority of the three 

 works could not be discredited on the ground 

 of inadequate or invalid data. 



It will be impossible here to give any com- 

 plete exposition of the methods of handling 

 the data. The statistical tables, with the ac- 

 companying brief explanations, must be al- 

 lowed to speak for themselves. Discussion will 

 be confined in the main to the significance of 

 the findings. 



Before taking up the correlations in detail, 

 attention must be directed to one or two points 

 regarding the environment that is being meas- 



* Cattell, J. McK., American Men of Science. Science 

 Press, New York, 1910. 



