Autograph Letter Signed, to R.H.Bourchier Nicholson, explaining that the claims on his time prevent him accepting the invitation to lecture. 2 pp. 7 x 4½ inches, in good condition. The Museum House, Oxford, 19 September 1887. Sir Edward Burnett Tylor (1832-1917), a founding figure of the science of social anthropology, travelled to Mexico in 1856 and recorded his visit in Anahuac; or, Mexico and the Mexicans (1861). He made his reputation with his Researches into The Early History of Mankind (1865). His chief work was Primitive Culture (1871). Tylor became the first Professor of Anthropology at Oxford (1896-1909).