I. Introduction -- II. Fulda's Theories Regarding the Origin and Development of Language -- (1) The origin of sounds -- (2) Fulda's root system -- (3) The Preisschrift and the Wurzelwörterbuch -- (4) Further development of the original roots -- (5) Fulda's etymological principles and his criticism of other scholars -- (6) Development and classification of the languages of the world -- III. Fulda's Studies in the Germanic Languages -- (1) Definition and divisions of Germanien -- (2) Grammatical features of Germanic -- (3) High German and Low German -- (4) Frisian, English, and the Scandinavian languages -- (5) Gothic -- IV. Fulda and Modern German -- (1) Fulda's definition of Hochdeutsch and his orthographical principles -- (2) Fulda as a grammarian of New High German -- (3) Fulda as a Mundartforscher -- V. Conclusion -- Bibliography -- Index.