The First Part

Having already discussed at length the order which must be kept to form the ears according to mathematical rules, I want now to show you a simpler way so that the variation of the view here is represented, and in a similar manner I will start: you will create a figure as shown by letter A, divided into two parts. You will find the position of the hearing through line B C D, but if you want to place the ear in profile, take half of figure A and draw it within a long oval, and you will easily find the secure outline, and once made, draw over it carefully with charcoal, and then rub out the charcoal with a fine cloth so you can draw it in perfection afterward.

Having sufficiently dealt with the order that must be maintained to make the ears by mathematical regulation, I now want to indicate a much simpler way with which a change of perspective is set for the eyes, and I will likewise begin in this manner: You shall make a figure, as similarly shown by letter A, divided into two parts, and you will find the place of the hearing through line B C D, but if you want to set the eye in profile, take half of the figure A and draw it within a long oval, and you will easily have the outline, and if you have diligently worked it with charcoal, then take a fine cloth and wipe away the black of the charcoal, and then you can neatly continue with a pen drawing.

I have previously discussed the order one must keep to make the ears by mathematical rules: I now want to show you an easier rule, by which the variation of view is represented: And you will start this way. You will make a figure demonstrated by letter A, divided into two parts, and you will find the position of hearing through line B C D, but if you want to position the ear in profile, take half of figure A and pull it within an elongated oval, and you will easily find the true and correct delineation: And as soon as you have drawn it with diligence in charcoal, you must immediately take a fine cloth and erase the line of the pencil and afterward draw it with the pen.

In which previously, well viewed the order, one should keep to make the ear through mathematical rules, has been discussed, so I want to indicate an easier one, according to which a change of the face for eyes is set, and I will also begin thus. You should make a figure as shown by the letter A, divided into two parts, and you will find the hearing through the line B, C, D, but if you want to set the ear in profile place it in the half of figure A and draw the same within a long oval and you will easily find the definite expression; and if you have neatly made it with a fine cloth, so take away the black of the charcoal, you can then perfectly continue to draw with the pen.

Translation Notes

Figure A: Refers to a diagram or illustration not visible in the text but mentioned as part of the instructional guide.