lx, 407 or. [Bibliografia: 345-397; Index nominum: 399-405; Taulen aurkibidea: 407][EN] This PhD thesis deals with eight issues in the History of 19th-Century Basque Grammaticography. The work undertaken is within the area of Linguistic Historiography; and more exactly, it deals with the history of grammatical ideas about the Basque language. This dissertation has two main parts: Chapters 1 through 5 examine the work of several 19th- century bascologists (Astarloa, Humboldt, Darrigol,Bonarparte, and van Eys). Chapters 6 through 8 introduce the analyses that some grammatical topics received throughout the Basque grammatical tradition, mainly in the 19th century (the identification of the article, the so- called "unique verb" theory, and ver...