TABLE 232. 215 



THERMAL CONDUCTIVITIES OF INSULATING MATERIALS. 



Conductivity in g-cal. flowing in i sec. through plate i cm thick per cm 2 for i C difference 

 of temperature. 



Dickinson and van Dusen, Am. Soc. Refrigerating Eng. J. 3, Sept. 1916. 

 SMITHSONIAN TABLES. 



