Fraunhofer, Joseph von, 1787-1826 Prismatic and diffraction spectra / by Joseph von Fraunhofer ; translated and edited by J. S. Ames - New York : Harper, 1898 - 67, [1] p., [1] p. leaves of plates ; 21 cm. - Harper's scientific memoirs ; .2 . Includes index Subjects--Topical Terms: Spectrum analysis Dewey Class. No.: 535.84