PAPERS ON CHEMISTRY AND PHYSICS 273 



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(1) The Mechanical Equivalent of Light. Coblentz and Emerson 



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(2) Cold Light. E. N. Harvev, Scribners Mag. 72. 455. (Popular). 



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E. N. Harvey, J. Gen. Physiol. 8, 135 (1919). 

 Lmninesccnce in Inorganic Bodies. J. Fred Corrigan, Chem. 



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 Cold Light. G. A. Percival. Beama Journal 9. 531 (1921). 

 Knoicns and Unknowns in Light Production. G. M. J. Mackay. 



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