258 



SCIENCE 



[N. S. Vol. XLIX, No. 1263 



show a relatively large percentage of men 

 rating C + or below, whereas engineering 

 officers head the list with relatively few men 

 whose intelligence is rated below B. There 

 is no obvious reason for assuming that the 

 military duties of the engineer demand 

 higher intelligence or more mental alertness 



OCCUPATIONS 



ENG 0FF5 



MED 0FF5 

 37 ACCOUNTANTS^^^^ 

 38b BOOKKEEPERS E 



ARMY NURSE5I 

 38g CLERKS M 

 iqg ELECTRICIANS 

 31t TELEGRAPHERS^ 

 18s SroCKKEEPERSI^^H 

 Z4^AUT0REPAIRMI 

 6^ MACHINISTS 

 l4p.PLUMBER5 

 231 TRUCK DRIVERS 

 7^ BUCK5MITHS 

 8^ CARPENTERS 

 40cC00K5 

 45 BARBERS 

 27h HORSE H05LRS 

 12^ MINERS 

 3, LABORERS 



Fig. 12. Eelation of occupation to inteUigence. 

 than do those of the medical officer. Since 



the army afforded opportunity for a study 

 of the relation of intelligence to occupation. 

 Various features of this relation are ex- 

 hibited for a few military occupations by 

 Pig. 12, in which are represented the pro- 

 portions of the several grades of intelligence 

 for the several occupations. 



NO. CASES j^BEFA 

 675 



it is improbable that any arm of the service 

 possesses more intelligence than can be 

 used to advantage, the necessary inference 

 is that certain arms would benefit by the 

 iClimination of low grade men and the sub- 

 stitution of officers with betiter intellectual 

 ability. 



Relation of Intelligence to Occupation. — 

 The occupational classification of soldiers in 



In order of -diminishing intelligence ex- 

 hibited these groups may be classified as 

 follows: professions, clerical occupations, 

 trades, partially skilled labor and unskilled 

 labor. The greatest differences in intelli- 

 gence required or exhibited appear at the 

 upper end of the scale, whereas the differ- 

 ences within the trades group are relatively 

 small. The differences in range of intelli- 

 gence occurring in the several occupations 



