00971cam a2200241 i 4500 gu_didascalocoph00dalg CaSfIA 20251005202845.0 m o d cr|||||||||||| 780720s1680 enka o 00000 eng d WUM WUM GQG CaSfIA Dalgarno, George, 1626?-1687. Didascalocophus : or the deaf and dumb mans tutor, to which is added a discourse of the nature and number of double consonants: both which tracts being the first (for what the author knows) that have been published upon either of the subjects / Geo. Dalgarno. Oxford : Printed at the Theater, 1680. 1 online resource ([12], 136 pages : illustrations, diagr.) Baker Collection no. 23. Francis C. Higgins ; gift ; Sept.24, 1996. Photocopies in the DEAF Collection. English language Deaf. Manual communication. Consonants Deaf. https://archive.org/details/gu_didascalocoph00dalg Free eBook from the Internet Archive gu_didascalocoph00dalg ark:/13960/t9d51rm7n