Set the broad limb of T in the midst of its square erect, produced & drawn to a point on either side below, just as you did before in the letter I; then take two points e. and f., distant respectively one-tenth of the whole space from a. and b., and let the transverse limb of the letter be drawn below e.f. and of an equal length with it; but the projecting extremities of this line are to be cut obliquely, and the tips of these projections shall so far extend above the line a.b. to the right as below they depend to the left. The oblique lines of these projections are to be each a fifth part of the length of a.b.; & the angles of these projections you shall round out by means of circles of diverse radius—namely, for the lesser angle you are to use a diameter only two-thirds of the width of the broader limb; but for the greater angle you shall take a diameter equal to the side of a square contained between the broad and vertical limb and the intercepted portion of the line a.b. Another method.Or you make T thus in its square: Take your point e. as before, to the right of a., and cut your transverse limb diagonally, as before, yet so that the projection be dimidiated to the right, and at top the angle remain as it falls; and so at the other extremity, only the point f. must be moved as near again to b., the cutting line to be a little more erect, & the projection formed a trifle broader than at the hither end; otherwise shall everything remain as before; as I have delineated for you on the opposite page. |