Foreword 



The data upon which this study is based were collected 

 under the direction of Dean H. L. Smith during the year 

 1917-18. The details of gathering the data were planned by 

 Mr. W. E. Uphaus and some preliminary tabulations were 

 made by him. The present Director of the Bureau is respon- 

 sible only for the final form in which the data were arranged 

 and the interpretations which are given. It was originally 

 planned to make the study much more complete by including 

 a larger number of cities, but several superintendents who 

 expected to cooperate were prevented from doing so. It is 

 hoped, however, that the results of these partial studies of 

 certain phases of school organization will prove suggestive 

 and helpful. 



Walter S. Monroe, 

 Director, Bureau of Cooperative Research. 



