"With scarcely any knowledge... of what Black had done towards the exposition of the laws of Latent Heat, and guiding himself by a totally different theory, as to its relation to solidity and liquidity, Cavendish investigated... the evolution of heat which attends the solidification of Liquids, and the condensation of Gases or Vapours, and the converse "generation of Cold," as he styled it, which accompanies the liquefaction of Solids and the Vaporisation of Liquids."