Note 201 — MATTER AND SPIRIT IN THE LIGHT OF MODERN SCIENCE[196]

According to the very curious experiments of M. Hirn, the unity of heat or caloric in man, as well as in inorganic matter, corresponds to four hundred and twenty-five unities of mechanical labor—that is to say, to four hundred and twenty-five kilogrammes raised one metre high. Man gives in work twelve per cent of the heat produced, which is almost equal to the labor of our most perfect machines.