Haggerty: Study in Arithmetic 



467 



only 40 per cent. Considering each of the cities in each of the 

 sixteen i tests and fignring the per cent of dependability we get 

 Table XXXVIII. 



In the Form III charts each city is represented by its per cent 



20 



PER CFWT 



mpltipucatioa; 



PER CENT SERIES B GR.\PE 



of dependability. The horizontal line across the figure at the top 

 indicates 100 per cent. The distance between this line and the 

 top of each column indicates how much that score falls short of 

 100 per cent. The figures on the left indicate the per cent. The 

 cities are arranged in the same order in which they appear in 

 the tables. To the left appear the columns for Detroit, Boston, 



