THE FORMATION OF THE EAR.
The outward ,form of the ear is worthy of admiration.’ It is composed neither of soft flesh nor of solid bone. In the former case the upper part would hang down and prevent the communication of sounds; the latter would be productive of considerable pain and inconvenience whenever we should lie down. The Creator has chosen for the exterior parts a cartilaginous substance, yet perfectly adapted to the reverberation of sound. The use of this antechamber to the ear is to concentrate the vibrations of the air, and to transmit them to the organs of hearing. The internal structure will excite still greater astonishment. In the cavity is an opening called the auditory canal. The entrance of this passage is furnished with minute hairs, by which warning is given of any insect or other injurious substance. It is also furnished with a viscous wax, which tends to keep insects away. The tympanum, or drum, is placed obliquely in the auditory canal; it derives its name from its resemblance to a drum; for, within the auditory canal is a bony ring, and under this a ligament is tightly extended, which answers the same purpose as the strings in a drum.
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Bibliographic details
Franklin Times, Volume 9, Issue 705, 7 February 1922, Page 6
Word Count
204THE FORMATION OF THE EAR. Franklin Times, Volume 9, Issue 705, 7 February 1922, Page 6
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