A. It was in the water and lime before; but was in a latent state.
Q. Was there heat in the cold water and lime, before they were mixed together?
A. Yes. All bodies contain heat; the coldest ice, as well as the hottest fire.
Q. Is there heat even in ice?
A. Yes. But it is latent, (i. e. not perceptible to our senses).[4]
[4] Latent, from the Latin word, Lateo, (to lie hid.)
Q. How do you know there is heat, if you cannot perceive it?
A. Thus:—Ice is 32° by the thermometer; but if ice be melted over a fire, (though 140° of heat are thus absorbed,) it will feel no hotter than it was before. (i. e. it will be only 32°, and not 172°)[5].
[5] 32°, i. e. 32 degrees; 140°, i. e. 140 degrees, &c.
Q. What becomes of the 140°, which went into the ice to melt it?