2029. Because, when the saliva sticks to the box, and is evaporated, she knows it is not sufficiently hot: but when it runs along the iron, it is.
2030. Why is the flat-iron hotter, if the saliva runs along it, than if it adheres till it is evaporated?
2031. Because, when the saliva runs along the iron, the heat is sufficient to convert the bottom of the drop into vapor; but if the saliva will not roll, the iron is not sufficiently hot to convert the bottom of the drop into vapor.
2032. Why do wet feet or clothes give us "cold"?
2033. Because the evaporation absorbs the heat so abundantly from the surface of our body, that its temperature is lowered below its natural standard; in consequence of which health is injured. [This also explains why it is dangerous to sleep in a damp bed.]
2034. Why is the health injured when the temperature of the body is reduced below its natural standard?
2035. Because the balance of the circulation is destroyed, blood is driven away from the external surface by the chill, and thrown upon the internal organs, which are oppressed by this increased load of blood.