
Language
en
Duration
Loading book content...
Series
Columbia University. Teachers College. Contributions to education, no. 105.
Publisher of text edition
Project Gutenberg
Original publisher
New York: Teachers college, Columbia university, 1920.
Credits
Charlene Taylor and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.)
Release date
2023-12-10
Rights
Public domain in the USA.
Description
Originally presented as the author's thesis, Columbia University, 1918.
1891–1960