[The problem of this dissertation is to describe and analyze the educational ideal and ministry of the American evangelist, Dwight L. Moody, as it expressed itself in the establishment of the Northfield Schools in Northfield, Massachusett, (comprising the Northfield Seminary for Girls, founded in 1879 and Mount Hermon School for Boys, founded in 1881) and the Bible Institute in Chicago, Illinois, (founded in 1886 and now called Moody Bible Institute) by tracing this ministry from the founding of these schools down to the time of Moody's death in 1899.]