This book contains a detailed and critical analysis of the experimental evidence of varying methods of foreign language study, summarizing the knowledge concerning economical methods of language learning. A distinction is drawn between convictions based on general experience or on purely logical processes and facts that have been established experimentally. A foundation is suggested for an objective, experimental investigation of problems of language learning. Originally published in 1931. A UNC Press Enduring Edition -- UNC Press Enduring Editions use the latest in digital technology to make available again books from our distinguished backlist that were previously out of print. These editions are published unaltered from the original, and are presented in affordable paperback formats, bringing readers both historical and cultural value.