emonstrate very clearly desired to check up.these results by an experimental new substance wUJ.. be an advantage in the corn in- method, and for this purpose M. Lyon devised a novel that 90 per cent of the echoes of the Trocadero hall dustry, as besides the corn starch and the oil, we can acoustic… … Lyon's large apparatus employed in correcting A cloth screen with a sound-reflecting mirror Lyon's small apparatus for ascertaining the position the acoustics of the "Trocadero." .aehind It. of acoustic reflecting points. METHOD OF COEEECTING FAULTY ACOUSTIC PBOPEBTIES OF PUBLIC HALLS. amyl alcohol…
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