Porter — The Growth of St. Louis Children. 269 
charged also to see that his school finished its allotted daily 
task and dispatched at the close of the session the apparatus 
in its hands to the next school on the list. In addition to 
these nine Special Assistants, thirty Head Measurers were 
employed. The Head Measurers were divided into five sec- 
tions named after the days of the school week from Monday 
to Friday. Each section went on its own day to the school 
whose turn it was to have heads and faces measured. The 
remaining measurements were made by the teachers. 
Not even the industry of these many assistants would have 
accomplished the task in the required time had there not been 
an abundance of apparatus. Of measuring-rods, measuring- 
tapes for the chest, double sets of Snellen-Green test letters, 
spectacle blinders, watches and callipers, there were a dozen 
each, and five dynamometers and six small platform-scales 
were also in constant use. Twelve school rooms could thus 
often work at the same time, and a great many children were 
measured in a few hours. 
The following printed instructions were given to every 
measurer. 
Form D. : 
INSTRUCTIONS TO OBSERVERS. 
Four printed forms are furnished. These are: 
Form A. Male (white paper). 
sc B. 6CFemale (tinted paper). 
ss . For parents. 
‘¢ D. Instructions to observers. 
On Monday, January 4th, a sufficient number of these forms will be taken 
to school A. The same day answers 1, 2, 3, 4,13, 14 and 32, Form A or B, are 
written, and each pupil is given Form C to carry home. The next morning 
form C is returned by the pupils, and answers 5, 6,7, 8, 9,10, 11 and 12 
are copied on form Aor B. The third day the measurements begin, and are 
carried out according to the following 
f CALENDAR. 
° Ist day 1, 2, 3, 4, 13, 14, 32. 
2a 6,6, 7,5; 9; 10; 11, 1s. 
8th “* 25, 26. 
9th “* 27, 28, 29, 30, 31. 
