Results

A treatise on astronomical spectroscopy : being a translation of Die spectralanalyse der gestirne / by Professor Dr. J. Scheiner. Tr., rev. and enl., with the coöperation of the author, by Edwin Brant Frost.

On the results of spectrum analysis applied to the heavenly bodies : a discourse delivered at Nottingham, before the British Association, August 24, 1866 / by William Huggins ... with an appendix, and eighteen photographs.