Table of Contents 



Volume IV 



{Owing to conditions due to the war, Volume IV was not com- 

 pleted, and the publication was changed from a bi-monthly to a 

 quarterly.) 



34. The Ability To Read: Its Measurement and Some Factors 



Conditioning It. By Melvin E. Haggerty, Ph.D., Pro- 

 lessor of Educational Psychology, University of Minne- 

 sota; formerly Associate Professor of Psychology and Ed- 

 ucation, Indiana University. 



35. Power Economy and the Utilization of Waste in the Quarry 



Industry of Southern Indiana. By Grover C. Mance, 

 Ph.D. 



Volume V 



36. An Experiment to Test the Nature of the Variations on whicii 



Selection Acts. By Fernandus Payne, Ph.D., Associate 

 Professor of Zoology, Indiana University. 



37. A Cooperative Study of Reading in Sixteen Cities of Indiana. 



By Bureau of Cooperative Research, Indiana University 

 School of Education. 



38. Studies in Arithmetic, 1916-17. Edited by Walter S. Mon- 



roe, Director of Bureau of Cooperative Research, Indiana 

 University School of Education. 



39. Progress and Promotion of Pupils in Certain Indiana City and 



Rural Schools. By Walter S. Monroe, Director of the 

 Bureau of Cooperative Research, Indiana University 

 School of Education. 



