THE ABSORPTION SPECTRA OF SOLUTIONS 



OF 



CERTAIN SALTS OF COBALT, NICKEL, COPPER, IRON, CHROMIUM, NEODYMIUM, 



PRASEODYMIUM, AND ERBIUM IN WATER, METHYL AICOHOL, 



ETHYL ALCOHOL, AND ACETONE, AND IN MIXTURES 



OF WATER WITH THE OTHER SOLVENTS 



BY 



HAEEY C. JONES AND JOHN A. ANDERSON 



WASHINGTON, D. C. 



PUBLISHED BY THE CARNEGIE INSTITUTION OP WASHINGTON 



1909 



