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Show Inventing the Spectroscope. When one strikes a common sulphur match the phosphorus burns with a purplish pur-plish flame, then the sulphur with a yellow yel-low hue, and last of all the wood glows with reddish rays. From noticing that every substance yields its own peculiar color in burning, Sir John Herschel long aR0 suggested that these colors might serve trf identify the substances showing them. Some time after he threw out the suggestion the spectroscope was devised, de-vised, and now by its aid we are able to tell what elements are aglow, not only in the sun, but in the stars as well.-George lies in New York Sun. |