BY THE PARIS CORRESPONDENT OF THE SCIENTIFIC AMERICAN. the tests. Maisano: d. New Corn Product. How the reflecting spot on a wall is found. A cloth screen with a sound-reflecting mirror Lyon's large apparatus employed in correcting Lyon's small apparatus for ascertaining the position of acoustic reflecting points., -1909-06-19

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BY THE PARIS CORRESPONDENT OF THE SCIENTIFIC AMERICAN. the tests. Maisano: d. New Corn Product. How the reflecting spot on a wall is found. A cloth screen with a sound-reflecting mirror Lyon's large apparatus employed in correcting Lyon's small apparatus for ascertaining the position of acoustic reflecting points., -1909-06-19

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