542 



EEPOKT— 1889. 



minus the specific and latent heats of fusion and vaporisation of the elements, and 

 plus the specific and latent heats of the compound formed. 



^ 



X. 



The only work on specific and latent heat of substances melting at high tem- 

 peratures, up to the present, is that of M. Person,^ who gives the latent heat of 



fusion, and specific heats, solid and liquid, of sodium and potassium nitrates, and of 

 some of the elements, such as phosphorus and sulphur. 



' Ann. de CMmie, xxi. p. 333 and xxiv. pp. 129 and 265. 



