. A text-book of animal physiology [microform] : with introductory chapters on general biology and a full treatment of reproduction, for students of human and comparative (veterinary) medicine and of general biology. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. HEARING. 605 nimals (ant*;, um, and also ally sensitive 18 are unable ralis, are the be images of 'ith complete e movements s seen as one that the im- na. Binocu- or the idea of ) an object is by the^ retina >rated in the rceiving ego. tions of vari- ocate in any . to " irradia-
. A text-book of animal physiology [microform] : with introductory chapters on general biology and a full treatment of reproduction, for students of human and comparative (veterinary) medicine and of general biology. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. HEARING. 605 nimals (ant*;, um, and also ally sensitive 18 are unable ralis, are the be images of 'ith complete e movements s seen as one that the im- na. Binocu- or the idea of ) an object is by the^ retina >rated in the rceiving ego. tions of vari- ocate in any . to " irradia- L phenomena from sugges- binal images, at the time. ) also, though .scular move- ation, etc., as without and of the sense ry, being in- ring and sur- lation, except e recognition through the as originated bh which it is It will be assumed that the student has made himself famil- iar with the general anatomy of the ear. The essential points in regard to sound are considered in the chapter on "The ; It will be remembered that what we term a musical tone, as distinguished from a noise, is characterized by the regularity of vibrations of the air that reach the ear; and that just as ethereal vibrations of a certain wave-length give rise to the sensation of a particular color, so do aSrial vibrations of a definite wave-length originate a certain tone. In each case must we take into account a physical cause for the physiological effect, and these bear a very exact relationship to one another. As will be seen later, while in all animals that have a well- defined sense of hearing the process is essentially such as we have indicated above, the means leading up to the final stimu- lation of the end-organ are very various. At present we shall consider the acoustic mechanism in mammals, with special ref- erence to man. There are in fact three sets of apparatus: (1). Ito. MB.—SectlOB UvoiighwidNarracsaB (•»•¥- •xtemal Mid mmUUxt BMatUB wtth 0|Miriiig of ; t, 4, S
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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1880, bookyear1889
