Although we have already mentioned this lantern in several places and shown a method of transmitting images by the sun into dark places, we will illustrate one further use--that is, a method of projecting painted images of objects in their own colors. Because previously we merely outlined this subject and left it entirely apart from other more important inventions, it happened that many who were drawn by the novelty of the magic lantern applied their minds to its refinement. First among these was a Dane, Thomas Walgenstein, not a little known as a mathematician, who, recalling my invention, produced a better form of the lantern which I had described. These he sold, with great profit to himself, to many of the prominent people of Italy. He sold so many that by now the magic lantern is nearly commonplace in Rome. However, there is none among all these lanterns which differs from the lantern described by us. Walgenstein said that with this lantern model he showed a large number of sufficiently bright and shining pictures in a dark chamber and they aroused the greatest admiration in the audiences. We in our dark chamber at the college are accustomed to show many new pictures to the greatest wonder of those looking on. The show is most worthwhile seeing, the subjects being either satire or tragic plays, all the pictures in the appearances of the living. From Kircher’s statement Walgenstein should be hailed as the first commercializer of the projector and the first traveling picture showman or “road-show man.” Unfortunately, little is known of this man. While he may have been “not a little known” in Kircher’s time, he left no mark on history, evidently never writing a book or holding an educational or other position which would have been recorded. It seems certain that he was the Dane of whom the French inventor and scientist, Milliet de Chales, spoke about as introducing the magic lantern in Lyons, France, some years after it was invented by Kircher. Kircher’s statement about the shows which he put on at the Roman College is most interesting. The reference to tragic and comic plays indicates beyond doubt that Kircher used a succession of lantern slides to tell a story as the modern motion picture is made up of a succession of pictures.