Proceedings of the American Academy of Arts and Sciences 

 Vol. XLVIII. No. 5. — August, 1912. 



A STUDY WITH THE ECHELON SPECTROSCOPE OF 



CERTAIN LINES IN THE SPECTRA OF THE ZINC 



ARC AND SPARK AT ATMOSPHERIC PRESSURE. 



By Norton A. Kent. 



With two Plates. 



Investigations on Light and Heat made and published with Aid 



FROM THE RuMFORD FuND. 



