Butler, Frank Arthur,  1894- <br/><br/>
The improvement of teaching in secondary schools. 

 - by Frabk A. Butler ... 
 - Chicago, Ill. :  University of Chicago Press,  1946 
 - xii, 399 p. :  illus., diagrs. ;  24 cm. 
<br/><br/> 'Copyright 1939 and 1946 ... Second edition 1946.' 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching.<br/>Education, Secondary.<br/>Learning, Psychology of.