As we descend, the heels may afford evidence of the present or past existence of grease. If the former, an offensive discharge will cover the skin; if the latter, the integument will be more or less thickened and thrown into folds, and may be studded over with small hard pimples.

In heavy horses whose legs are covered with hair this disorder may be overlooked, unless a searching examination is pursued.

Cracks and chaps may also exist here and render the horse for the time being unsound.