The MouthAuthor(s): J. H. VanderpoelSource: Brush and Pencil, Vol. 4, No. 4 (Jul., 1899), pp. 222-223Published by:Stable URL: http://www.jstor.org/stable/25505441 .

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THE MOUTH

In drawing a three-quarter view' of the mouth the foreshortening of the lips in the farther half should .be carefulty considered, the curvatu're of "the upper lip bec-omes increased as it descends into the

depression at.the corner, the middle of. the upper lip must well over hang the' lower, and the lower lip'the chin. Observe-well the depression of the. corners as related to the middle-compare the relative flatness of the thickness of the.upper lip to the fullness and outward roll of the lower. When the head .leans w'ell forward, note the angle formed by the two halves of the upper lip; with the corners well raised, the' thickness of -the upper lip becomes foreshortened, so apparently less

wide, with the full width of the lower lip exposed. Study the subtle curvature of the- line of contact of upper with lower.lip as it ascends on either side of the middle, and is lost with a slight upward turn in the- corners. With the head thrown back we get an entire, reversal of the former; - the; thickness 'of the.' upper lip is disclosed up to the intervention of the lower, the line of contact of the lips is now

marked by the shape of the lower'lip, flat in the middle with fullness of curve.as it descends to the corners; the lower lip is now least wide of the two apparently, and the corners have become much lower than the middle. In both of these cases the form of the lips,must disclose the degree of convexity of the -teeth. A thorough knowledge of the construction of the mouth is quite necessary before undertaking to draw the more foreshortened views in order that the student may account for every portion, and possess a perfect mental picture of it in order that every portion may be expressed as understood. The foreshortened drawings in plate (6) are m'ade to disclose the changes the normal forms undergo in the various actions of the head.

J. H. VANDERPOEL.

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A'~~~~~~~~~~~~N

PLATE V

FIGURE DRAWING, THE MOUTH BY J. H. VANDERPOEL

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