The skin is hot and dry in fever.

Moisture is nearly always a favorable sign. Exceptions are, the cold and clammy perspiration of great prostration, and the copious sweating of advanced consumption.

Emaciation (wasting) is seen generally in those long sick. Sometimes it occurs rapidly, as in severe diarrhoea, or in the summer complaint of children.

The color of the skin may be changed considerably in disease. The face is >Pale, during fainting, with sick stomach, and in anaemic persons.

Flushed, in fever, early stage of apoplexy, or intoxication.

Cheeks brightly flushed, in hectic fever of consumptives.

Purple or livid, in typhoid or typhus fever.

Yellow, in jaundice, bilious fever, and yellow fever.

Sallow, in chlorosis, dyspepsia, and cancer.

Blue, in the collapse of cholera, and cyanosis.

Black, almost, in suffocation from any cause.

Eruptions upon the skin belong to certain other diseases.