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The possible functions of the sphenoid bone are discussed, and a series of experiments detailed, in an interesting paper by Mr. J. A. Maloney, in the N. Y. Medical Journal. In making tests to ascertain the conditions of those with impaired hearing, preparatory to applying an otophone in the case, Mr. Maloney was impressed with a singular effect in some cases of great hardness of hearing when he had reason to suspect partial anchylosis of the ossicula, or adhesions of the same when resulting from catarrh of the middle ear. It was noticed that a very low voice could be heard when the ear-piece of the otophone was placed upon that portion of the temporal bone that joins the great wings of the sphenoid, while a comparatively loud voice could not be heard when the otophone was placed over the external auditory meatus. The experiments made for determining the
THE FUNCTIONS OF THE SPHENOID.. JAMA. 1888;XI(8):274-275. doi:10.1001/jama.1888.02400600022005