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Show THE COLOR"OFSOUND. How Hie Tonfl nr n Trumpet Influence the llralu. ' Wo recognize tho happiness of tho wcll-lcnown nnalogy traced by n blind mnu botwecn scarlet and tho sound of a trumpet, becauso thoso who can both sco ami hear accept tho aptness of comparison com-parison between tho two forces which powerfully affect, ono tho optic, tho other tho auditory, ncrven. Hut bcarlct Is not tbo exact analoguo of n trumpet blnst. Tho sensation of color Is imported to tho bruin by means of vibratory waves communicated to tho nll-pervadlug medium, me-dium, other; that of sound bytlrullur wnvca commuulcatcd to tho e.ner medium, me-dium, atmosphere. If tho nnatorruo between be-tween scarlet nnd a trumpet blast vvcro a true ono each should affoct tho senso-rlam senso-rlam by means of vibration of a rapidity rapid-ity similar In proportion tq that caused by other colors oud toua. Hut that Is not bo, -.ays IllacUwood'o Magazine. Tho pitch of n tone Increases In-creases with tho number of vibrations In a given time; tho tono of a trumpet Is high becauso it causes relatively rapid souud wnvca. Iiuttho vibrations cautcd by a rny of red light aro few compared with thoso caused by other mys, forthe vibrations arising from tho red ona of tho spectrum amount only to nlfcut four hundred find flfty-slx billions In 11 occond, whereas thoso from tho violet end nmount to about six hundred and sixty-seven billions. So tho blind man was only vaguely bucccssful in comparing compar-ing a lively Eouud with a vivid color. |