2561. This process is the property of the teguments or membranes, both of those lining the internal cavities, as also of such as are placed externally.
2562. But the process of evaporation is principally the function of the true skin or corium. As an organ of evaporation the corium is similar to the lung. It is consequently aeriform water, which of necessity constitutes the principal mass of evaporation.
2563. The water is, however, mucous in character, the mucus becomes oxydized in the air, and through this also carbonic acid is formed.
Heat.
2564. The chief function of the cell-formation is the process of heat. The cell-process and heat-process are one in kind. Heat is the product of the process of condensation and rarefaction, and thus of the nutrition and evaporation, both of which happen in the cells, or, if we please, in the capillary vessels.
2565. In the skin the process of temperature is individualized.
2566. All temperature depends upon the process of condensation and rarefaction. At one time it is the nerves, at another the vessels, anon, external influences, which alter or modify it. Animal heat, like the cosmic heat, has been produced by change of the fixation. This change, however, takes place principally in the nutrition and evaporation.
2567. The fat is the "residuum" or the antagonism of the process of evaporation or water-formation. It is therefore deposited everywhere on the water-organs, beneath the integument, along the intestine and the vessels, around the kidneys, and so on.
2568. It is, like the adipocire, a product of the aqueous decomposition. On this account it is subservient to the process of temperature. It is the only isolator of heat, while all other animal bodies are conductors.