Round-about Rambles in Lands of Fact and Fancy | Page 4

a card or paper, upon which the lights of the picture intended to be represented are cut out. When this is held between a candle and a wall, a startling shadow-image may be produced, which one would not imagine to have any connection with the card, unless he had studied the manner in which said card was cut. Here is a picture of a company amusing themselves with these cards. No one would suppose that the card which the young man is holding in his hand bore the least resemblance to a lion's head, but there is no mistaking the shadow on the wall.
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The most wonderful public exhibitions of optical illusions have been those in which a real ghost or spectre apparently moves across the stage of a theatre. This has frequently been done in late years, both in this country and Europe. The audiences were perfectly amazed to see a spirit suddenly appear, walk about the stage, and act like a regular ghost, who did not seem to be in the least disturbed when an actor fired a pistol at him, or ran him through with a sword. The method of producing this illusion is well shown in the accompanying picture. A large plate of glass is placed in front of the stage so that the audience does not perceive it. The edges of it must be concealed by curtains, which are not shown in the picture. An actor, dressed as a ghost, walks in front of the stage below its level, where he is not seen by the audience, and a strong electric light being thrown upon him, his reflected image appears to the spectator as if it were walking about on the stage. When the light is put out of course the spirit instantly vanishes.
[Illustration]
A very amusing account is given of a man who was hired to do some work about a theatre. He had finished his work for the present, and wishing to eat his supper, which he had brought with him, he chose a nice quiet place under the stage, where he thought he would not be disturbed. Not knowing that everything was prepared for the appearance of a ghost, he sat down in front of the electric lamp, and as soon as it was lighted the audience was amazed to see, sitting very comfortably in the air above the stage, a man in his shirt-sleeves, eating bread and cheese! Little did he think, when he heard the audience roaring with laughter, that they were laughing at his ghost!
Light plays so many tricks with our eyes and senses that it is possible to narrate but a few of them here. But those that I have mentioned are enough to show us what a wild fellow he is, especially where he and glass get frolicking together.

SAVING THE TOLL.
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When I was a youngster and lived in the country, there were three of us boys who used to go very frequently to a small village about a mile from our homes. To reach this village it was necessary to cross a narrow river, and there was a toll-bridge for that purpose. The toll for every foot-passenger who went over this bridge was one cent. Now, this does not seem like a very high charge, but, at that time, we very often thought that we would much rather keep our pennies to spend in the village than to pay them to the old man who took toll on the bridge. But it was often necessary for us to cross the river, and to do so, and save our money at the same time, we used to adopt a very hazardous expedient.
At a short distance below the toll-bridge there was a railroad-bridge, which you cannot see in the picture. This bridge was not intended for anything but railroad trains; it was very high above the water, it was very long, and it was not floored. When any one stood on the cross-ties which supported the rails, he could look right down into the water far below him. For the convenience of the railroad-men and others who sometimes were obliged to go on the bridge, there was a single line of boards placed over the ties at one side of the track, and there was a slight hand-rail put up at that side of the bridge.
To save our pennies we used to cross this bridge, and every time we did so we risked our lives.
We were careful, however, not to go on the bridge at times when a train might be expected to cross it, for when the cars passed us, we had much rather be on solid ground. But one day, when we had forgotten the hour; or a train was behind, or ahead of time; or an extra train