The patient was distinctly microcephalic and the right side of the body was markedly wasted.

The folds were due to hypertrophy of the muscles and scalp, and the same sort of furrowing is noticed when a dog "pricks his ears." This case may possibly be considered as an example of reversion to inferior types.

Cowan records two cases of the foregoing nature in idiots.

The first case was a paralytic idiot of thirty-nine, whose cranial development was small in proportion to the size of the face and body; the cranium was oxycephalic; the scalp was lax and redundant and the hair thin; there were 13 furrows, five on each side running anteroposteriorly, and three in the occipital region running transversely.

The occipitofrontalis muscle had no action on them.