@article{223175, note = {A revision of the author's thesis, University of Pennsylvania.}, author = {McGucken, William.}, url = {http://library.usi.edu/record/223175}, title = {Nineteenth-century spectroscopy; development of the understanding of spectra, 1802-1897.}, publisher = {Johns Hopkins Press}, recid = {223175}, pages = {xii, 233 p.}, address = {Baltimore,}, year = {1969}, }