Show bonal of the trumpet we recognize the happiness of the well known analogy traced by a blind man between scarlet and the sound of a trumpet bo cause those who cannoth can both and hear accept the aptness of comparison between the two forces which powerfully affect one the optic the other the auditory nerves but scarlet is not the exact analogue of a trumpet blast the sensation ot color Is imparted to tho brain of vibratory waves communicated munica ted to the all pervading medium ether that of bound by similar waves communicated munica ted to the denser medium atmosphere if the analogy between scarlet and a trumpet blast were n true one each should affect the by means of vibration of a rapidity similar in proportion to that caused by other colors and tones but that Is not the of a tone increase with the number of vibrations in a given time the tone of a trumpet la high because it causes relatively rapid bound waves but the vibrations caused by a ray of red light are few compared with those caused by other rays for the vibrations arising from the red end of tho spectrum amount only to about in a second whereas those from tho violet end amount to about CC so the blind man was only vaguely successful in comparing a lively sound with a vivid color Black wooda magazine |