Fever is diffused inflammation. There can be no fever without a local inflammation. Inflammation always precedes fever. The sensible phenomena indicating inflammation are redness, heat, pain, swelling and disordered function. We are told by pathologists that the pain and swelling are because of congestion.
Pathologists look to blood as a functional disturber.
If a disturber it should also be a corrector. Dunglison says, Inflammation is not easily defined. If pathologists knew that heat was a function of nerves, the cause and the condition of inflammation would be easily accounted for and explained. Such knowledge would let in a flood of light on the etiology of many diseases now given as obscure. Artero-sclerosis in old age is physiological.