It is by the shape and size of the forehead that we are to judge of the extent of a man’s understanding.
A gently arched forehead, without a single angle, evinces a mild disposition; and often, that the mind is destitute of energy. (See [pl. XXIV.])
A smooth, open forehead, indicates peace of mind; when it is wrinkled and furrowed, it announces stormy passions, perturbation of mind, and old age: but in the latter instance, the wrinkles are more regular, less broken, and do not approach so near the eyes.
The upper part of the forehead only being wrinkled, gives to the visage a look of amazement, which sometimes approaches to folly.
Perpendicular wrinkles on the forehead give promise of great energy and application; but the contrary when they are cut transversely by others.
A forehead full of irregular protuberances is characteristic of a choleric temperament. (See [pl. XXII.])
When we meet with horizontal lines at the junction of the nose and forehead, we may expect a harsh and unfeeling disposition. (See [pl. VIII.])
Deep perpendicular incisions between the eyebrows, are evidence of strength of mind, provided they be not counterbalanced by other indications of a positively contrary import.
When the frontal vein appears distinctly in the midst of a forehead, open, uniform, and regularly arched, it announces extraordinary talent.
When the forehead is perfectly perpendicular, from the hair to the eyebrows, it denotes an utter deficiency of understanding. (See [pl. V.])