328 Memorias de la Sociedad Científica 
room was set apart for making the measurements. It required 
about twenty minutes to measure each pupil. There were ge- 
nerally four pupils in the room, so that each one saw three 
measured before his or her turn came. The endeavor was to 
make all the conditions, as far as possible, similar for each 
pupil. Experiments were made upon the right hand or wrist 
first, then upon the left hand or wrist. 
The pupils were selected according as it was convenient to 
send them in, so as to interfere as little aspossible With their 
regular school duties. 
CONCLUSIONS AS TO 1,074 CHILDREN SPECIALLY STUDIED. 
a 
23. Dolichocephaly, or long-headedness, increases in chil- 
dred as ability decreases. A high percentage of dolichocephaly. 
seems to be a concomitant of mental dullness. 
24. Children are more sensitive to locality and heat on the 
skin before puberty than after. | 
25. Boys are less sensitive to locality and more sensitive to 
heat than girls. | 
26. Children of the nonlaboring classes are more sensitive 
to locality and heat than children of the laboring classes. 
27. Colored children are much more sensitive to heat than 
white children. This probably means that their powar of dis- 
crimination is much better, and not that they suffer more from 
heat. 
