A PLATINUM SURFACE AT HIGH TEMPERATURES. 



521 



TABLE X. Emissivity in Dry Carbon Dioxide at Atmospheric Pressure. (See fig. 4.) 



TABLE XL Emissivity in Dry Carbon Dioxide at 6 centims. Pressure. (See fig. 4.) 



TABLE XII. Emissivity in Oxygen at Three Atmospheres. (See fig. 4.) 



TABLE XIII. Emissivity in Steam at Atmospheric Pressure. (See fig. 5.) 



VOL. CXCI. A, 



