ABSTRACT

A modification of the process of Photogenic Drawing is that by reflected light from natural objects. In a Camera Obscura, objects animate and inanimate are (diminished at will by proper lenses, and according to the distance of the screen,) reflected upon an appropriate and convenient medium. Supposing, therefore, a sheet of photogenic paper be placed at the proper position, it will catch and be altered by the lights thrown upon it, and thus a picture may be formed. And so may also a delineation of any object contained in a Solar Microscope be represented on a sheet of the prepared paper fixed properly before it. Paper subjected to the action of that light, occasioned by charcoal points when a stream of the galvanic fluid passes through them, commonly called the charcoal light, did not produce even the violet tinge upon the paper until exposed to it for some hours.