Anonymous, The Practical Magician and Ventriloquist's Guide
“ Too much attention cannot be bestowed on the study of sound as it falls on the ear, and an endeavor to imitate it as it is heard—for the “secret” of the art is, that as perspective is to the eye so is ventriloquism to the ear. When we look at a painting of a landscape, some of the objects appear at a distance; but we know that it is only the skill of the artist which has made it appear as the eye has seen it in reality. In exactly the same manner a ventriloquist acts upon and deceives the ear, by producing sounds as they are heard from any known distances. ”
