PART I
General objects and principles governing--
(1) the stone. (2) the ink, crayon, etching surface and color. (3) the acids and other preparing materials. (4) the necessary tools. (5) the paper. (6) the presses.
General objects and principles governing--
(1) the stone. (2) the ink, crayon, etching surface and color. (3) the acids and other preparing materials. (4) the necessary tools. (5) the paper. (6) the presses.