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Natural philosophy. including statics, hydrostatics, pneumatics, dynamics, hydrodynamics, the general theory of undulations, the science of sound, the mechanical theory of music, etc. : designed for the use of normal and grammar schools, and the higher classes in common schools (1867)

Sangster, John Herbert, 1831-1904 · Montreal : Printed and published by John Lovell · leaf 185

An illustration from Natural philosophy. including statics, hydrostatics, pneumatics, dynamics, hydrodynamics, the general theory of undulations, the science of sound, the mechanical theory of music, etc. : designed for the use of normal and grammar schools, and the higher classes in common schools, 1867, leaf 185
with which it communicates by means of avalvular opening that is generally closed. It gives exitto the mucus which forms in the middle ear, and also per-mits the entrance of air into the tympanic cavity ; whenclosed by a cold, it causes partial deafness. The ossicles of the tympa- ^^s- 41. • num… … Art. 440. j THE ORGANS OF HEAPJXG. 183 the OS orhiculare or round bone o, (the smallest bone in thebody), and the stapes or stirrup, s. The handle h of themalleus is fastened to the membrana tjmpani, and thebase of the stapes to the membrane covering the fenestraovalis. The bones are joined to one…

Physics

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