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Star (Christchurch), Issue 18786, 15 June 1929, Page 20 (Supplement)

Showing ear-trumpet that in many other mammals helps to locate sound; the outer ear-passage, with drum or tympanum across inner end, vibrating as sound-waves strike it. Then the bony hammer, anvil and stirrup, which, by lever action, transmit that movement to the inner ear—on to that “oval window” of the inner ear. Then the innermost ear, protected in a bony cavity and cushioned in lymph (blackT Uppermost, the coiled semi-circular canals that have to do with balancingbelow the sacculus, connected with the coiled cochlea (snail-shell), the real organ of hearing, containing the organ of Corti. At very bottom, the Eustachian tube connects with outer air through the mouth. . _____