Excerpt from A Treatise on Etching: Text and Plates It may, however, be incumbent upon me to offer a few words of excuse concerning my own connection with the bringing out of this translation; for, at first sight, it will, no doubt, appear the height of presumption, especially on the part of one who is not himself a practising artist, to add an introductory chapter and notes to the work of a consummate master on his favorite art. But what I...