How to Use it. Screw the Pentagraph to the table, with the needle point to your left, upon the photograph, (which is fastened to the table also), holding the end containing the pencil with the fingers, to the right. With your eye on the photo, move the hand so that the needle follows the outlines of the copy, and the pencil is producing the same on your drawing paper at the right. In this way go over the entire picture until you have a complete copy of the same. You may now shade with pen or crayon to suit the wants of the copy.
The small screws on the bars near the figures, are used in adjusting it to suit the size of picture required.
COPYING WITH TRANSPARENT PAPER.
Another method of transferring pictures to paper is by the use of a transparent paper, which is made by dissolving castor oil in absolute alcohol, and applying the liquid to the paper with a brush or sponge. The paper becomes dry as soon as the alcohol evaporates, which is almost instantly. After which lay the paper on the picture you are about to copy, and with a pencil follow the outlines of the picture until you have gone over the whole. As soon as done immerse the paper in alcohol, which will remove the oil, and restore the paper to its natural state.
PASTEL PAINTING,
WITH SUGGESTIONS FROM THE BEST ENGLISH AUTHORS.
“Exactly in proportion as an artist is certain of his end, will he be swift and simple in his means; and as he is accurate and deep in his knowledge, will he be precise and refined in his touch.”—Ruskin.