W HAT is facsimile? The word itself simply means an and interestingly enough that is the precise basis of its use in radio. But that is not enough. A good radio receiver of the conventional variety reproduces, in your home, an of the sounds which originate in the broadcast studio, but that is not facsimile in the sense that is meant here. Similarly, good television receiver will show, on its screen, an of the moving images that are being displayed before the distant television camera; again, that is not facsimile in the sense that interests us. Our exact copy, to be transmitted to us by wire or by radio, must be recorded on piece of paper that we can take hold of, and which carries on its surface an accurate copy of some text, picture, or other graphic material that exists on some other piece of paper somewhere else. Of course, we do not mean to limit ourselves strictly to a piece of paper, with the ephemeral qualities that these words sometimes suggest; what we really are considering is record, and, more than that, graphic record. It might be on celluloid or silk, although it is convenient to refer to the most common