Between 1894 and 1915 he published nine books on the history of education, based on material from the British Museum, the Public Record Office and local archives; his approach laid the foundation for modern research into the subject.
Between 1894 and 1915 Leach published nine books on the history of education based on examination of a vast amount of material from the British Museum, the Public Record Office and local archives. His approach laid the foundation for modern research into the subject.