Following on from Celtic Linguistics 1700-1850, this set covers the period 1850-1900, which saw the foundation of the modern subject of Celtic linguistics. Several important works are reproduced here, including:* Johann Kaspar Zeuss's seminal study, Grammatica Celtica (1853), the first text to formulate a detailed and comprehensive comparative grammar of the Celtic language.* John Rhys' Lectures on Welsh Philology (1877), and Whitley Stokes' Celtic Declension (1885), both of which reflect Zeuss's influence on the field.* Earlier traditions of the historical study of the Celts, with an emphasis on language, are continued in John Jones Thomas's Britannia Antiquissima; or, A Key to the Philology of History (1860).* Neo-druidic themes receive attention in John Williams's Gomer; or, A Brief Analysis of the Language and Knowledge of the Ancient Cymry (1854).This set covers a period of fundamental reformation in Celtic linguistics, and will be of interest to linguists, historians, and cultural theorists.