Let us speak now of the urine, that is, of the urine of those who have this disease, i.e. imposthumes. Note, if there be two colours on the urine, the colour of camel413 wool on top, and the lower part of the colour of inopus, that is the sign of an imposthume. If the urine be like that of a brutish beast, that is a sign414 of frenzy; if the matter be dense and watery, it signifies lethargy.