Аннотация:The article studies Bashkir dialect materials in the works of the 18th and thebeginning of the 20th centuries. These materials act as comparative materials on Bashkirdialectology. The study of this topic identifies the diversity and richness of the Bashkirlanguage and its dialects. The article analyzes the linguistic features of the works of A. G.Bessonov, V. Katarinsky, M. Bekchurin and others. Phonetic, morphological and lexicalfeatures of the texts of monuments of the 18th and the beginning of the 20th centuries areconsidered in comparison with the data of modern dialects and the literary Bashkirlanguage