- NLW MS 21718C.
- File
- 1899-1920.
Letters, 1899-1920, in Welsh and English, to Caradoc Mills (Sigma), Llanrwst, author of books and articles on scientific subjects, relating mainly to his published articles. The correspondents include Ifan ab Owen Edwards (1) 1920, Owen M. Edwards (23) 1900-1909 and undated, Archibald Geikie (1) 1902, Robert Owen Hughes (Elfyn) (3) 1904, Eleazer Roberts (2) 1905-1906, Principal T. F. Roberts (1) 1907, and W. W. Watts (2) 1902 and 1908. Also included is a typescript copy of the Board of Education Inspector's report on Evening Continuation Classes at Llanrwst, 1907-1908, in which reference is made to Caradoc Mills.