THE ABSORPTION SPECTRA OF SOLUTIONS 



OF COMPARATIVELY RARE SALTS 



INCLUDING THOSE OF GADOLINIUM, DYSPROSIUM, AND SAMARIUM 



THE SPECTROPHOTOGRAPHY OF CERTAIN CHEMICAL REACTIONS 



AND THE EFFECT OF HIGH TEMPERATURE ON THE ABSORPTION SPECTRA 



OF NON-AQUEOUS SOLUTIONS 



BY 



HARRY C. JOXES and W. W. STRONG 



