. Annual and analytical cyclopaedia of practical medicine . FiH. Fig. 2. Auditoi-y atropliy and anomalies of development in the membranous labyiintb of both ears in a case of deaf-mutism. (Scheibe.) Fig. 1.—CO, Cortis oraan ; z, increased cells in thesulcus spiralis ; b, arched layer of cells, ex-tending^ to the limbus laminae spiralis ossese ;m, Cortis membrane. Fig. 2.—s, Stratum semilunare; b, bee;ininng ofbasilar membrane ; ^j, prominentia spiralis;I, ridge on the stria vascularis ; e, flat cells onthe rest of the stria ; r, a piece of Reissnersmembrane, bulged forward toward tlie scal
. Annual and analytical cyclopaedia of practical medicine . FiH. Fig. 2. Auditoi-y atropliy and anomalies of development in the membranous labyiintb of both ears in a case of deaf-mutism. (Scheibe.) Fig. 1.—CO, Cortis oraan ; z, increased cells in thesulcus spiralis ; b, arched layer of cells, ex-tending^ to the limbus laminae spiralis ossese ;m, Cortis membrane. Fig. 2.—s, Stratum semilunare; b, bee;ininng ofbasilar membrane ; ^j, prominentia spiralis;I, ridge on the stria vascularis ; e, flat cells onthe rest of the stria ; r, a piece of Reissnersmembrane, bulged forward toward tlie scalavestibuli; inserted somewhat peripherally, andextending, farther on, in a thicker layer of cells. (Zeitschrift fiir Ohrenheilkunde.) tuning-fork, and the human voice. Thechildren were found to divide themselvesinto:— 1. Those stone-deaf or having no aerial hearing, ..... 9 2. Those hearing very loud sounds,— shouting, etc., . . .818. Those hearing and distinguishing the voice :—(a) Vowels only, . . 20} nc,(6) Consonants and words, . 13 ^ 123Disquali
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