The letter M you shall form in two ways within its square. In the first,
draw the narrower limb of the letter vertical, to the right of a. c.,
distant from a. one-tenth of the distance a. b.: draw the other, &
broader limb, on the near side of b. d., also a tenth part of the whole
distant from b. & in such fashion that both limbs touch the square at
top and bottom; then, between the two, bisect the line c. d. in the
point e. and draw a broad limb from the inner angle of the narrow limb,
downwards to the point e., & next a narrow one upwards from e. to the
inner angle of the broader vertical limb; and the inner angles at top
you must not round out, but leave acute; the exterior angles, however,
at the top, and both exterior and interior at bottom of both vertical
limbs, you are to adorn with the customary projections, as you have done
in the preceding letters. You are to know, too, that when these letters
are drawn with a pen, they are to be described with a single stroke. But
for your guidance is this letter, in the manner in which I have
instructed you, depicted below.
Another method.
Another way is thus: Divide the side a. b. of the square into six equal
parts & mark off the two extreme parts, one at either end, by the points
f. and g.; then draw the inner and broader limb, with its point at e. as
above; and to this, in an upward direction, a narrower one, so that
between f. g. be left a vacant space, and so more readily the letter
slope forward. Then you are to draw the two lateral and vertical
limbs--the near and slender, and the farther broad one--at the top,
indeed, as in the first sketch, but at the bottom produce them to the
two angles c. and d. and finally add projecting cusps, as you were
instructed in the first M; but the projection below will pass beyond the
square at the points c. and d. Or you shall make M at top with acute
angles, in which case the lateral limbs will slope the more; or shear
them off obtusely, and in this fashion (whichever pleases you best) make
them as you see them depicted in the following diagrams.
[Illustration: M]