TABLE OF CONTENTS. 
Page. 
Importance of the Question. 257 
Methods . 258 
Sources of Information. 259 
Deductive or Enrollment Method . 261 
Applied to Chicago Statistics. 261 
Incidental Observations. 262 
Applied to Milwaukee Statistics. 263 
Errors Balance each Other. 264 
Importance of Determining Limits of Error.. 265 
Minimum Limit of Error. 266 
Correction for Double Enrollment. 266 
Conclusions as to Minimum Limit. 268 
Inductive or Class Method . 268 
Corrections for Increase of Population. 268 
Corrections for Death Unnecessary. 270 
Chicago and Milwaukee Compared. 270 
Maximum Limit of Error. 271 
Final Comparison of Results . 271 
Average Amount of Schooling per Pupil. 272 
Statistics of Other Cities and Countries. 273 
Superintendent Smart and London School Board. 274 
Dr. W. T. Harris and Prof. C. M. Woodward. 275 
Superintendents White and Lane. 277 
Causes and Remedies . 279 
Summary . 280 
TABLES. 
Page. 
I. Enrollment of Public Schools (Chicago), Fifteen Years.... 282 
II. Average Daily Membership (Chicago), 1875-76 to 1880-81.. 283 
III. Per Cent, of Enrollment in Each Grade (Chicago). 284 
IV. Per Cent, of Pupils That do not Go beyond the Grade Named 
(Chicago). 285 
