CHAP. II.
Of the Precepts of Drawing in general.
BE careful to be provided with all necessary things for Drawing, as Charcoals, Feathers of Ducks-Wings, Pens made of Ravens Quils, Pastils, Crions, Black and Red-Lead Pencils, Ru∣lers, and Compasses; but it will be convenient to practice as much as possible without the help of the Rule and Compass, for your Eye, and Fancy should judge thereof without Artificial Measure∣ings.
Thus being prepared with the aforesaid Neces∣saries, together with good Vellom, Parchment, or fine thick Paper, begin with plain Geometrical Figures, as Lines, Angles, Triangles, Quadrangles, Circles, Arches, Ovals, Polygons, Cones, Cylinders, and the like, for the Circle helps in all round Forms; the Oval gives a true proportion to the Face and Mouth; the Triangle in the Half-Face; the Angles and Arches are in use in Perspective, and Architecture; the Polygon in Ground-Plats,