Thermal Conductivity during the Fusion of Metals. 551 



Lorenz's law — that is, that the ratio of the thermal and 

 electric conductivities is proportional to the absolute tem- 

 perature — is valid, the calculation was made by combining 



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my result with that oE Mr. Tsutsumi, and the ratio thus 

 found graphically given in fig. 6. Below the melting-points 



the law is fairly well satisfied, but in the Liquid state of 

 these metals the applicability of the law completely fails. 



