Adysgrifau o ddyddiaduron taith i'r Andes, 1889-97.
- NLW ex 1775.
- file
Adysgrif deipysgrif gan Marian Elias Roberts o ddyddiaduron, 1889-1897 â bylchau, William T Williams, Y Gaiman, Chubut, yn disgrifio teithiau ymchwil yng ngodre’r Andes (gweler NLW MSS 23551-8A); ynghyd ag adysgrif o ddau ddyddiadur tebyg (a ddychwelwyd at Fred Green, Chubut) am y cyfnod 8-26 Medi, 16 Hydref-21 Tachwedd 1889, a 27 Tachwedd 1889-4 Chwefror 1890. = A typescript transcript by Marian Elias Roberts of the diaries, in Welsh, 1889-97 with gaps, of William T. Williams, Gaiman, Chubut, Patagonia, describing expeditions to the Andes (now NLW MSS 23551-8A); together with a transcript of two similar diaries (returned to Fred Green, Chubut) for the period 8-26 September, 16 October-21 November 1889, and 27 November 1889-4 February 1890.
Roberts, Marian Elias.