Measurements of the latent heat of tin in passing from the supraconductive to the non-supraconductive state

In this paper we give the results of some latent heat measurements made on tin in connection with the transition from the supraconductive to the non-supraconductive state while a constant magnetic field is being applied. The range of the transition region as demonstrated by the occurrence of the transition heat agrees almost exactly with what can be calculated in connection with the form of the block. It is concluded, that in the transition, if performed in this way, no irreversible heat process takes place. The way in which the magnetic field penetrated into the block is considered. Some measurements of the latent heat were made at constant temperature. The results are discussed.