June 1905 Issue [Article] Mental types and their recognition in our schools Download PDF Adjust Share by Arthur Twining Hadley, This article is only available as a PDF to subscribers. Download PDF Tags 20th century Arthur Twining Hadley Educational innovations Elective system Higher education Professional education Typology (Psychology) United States Universities and colleges More from Arthur Twining Hadley Law making and law enforcement What is education? The colleges and the nation Adjust Share