Page:Popular Science Monthly Volume 90.djvu/367

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A Perilous Air Battle— in a New York Studio

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��Before the actual exposures were made, a sheet of white paper of the same size as en- l^gmg paper, was placed on an enlarging board. The different negatives, with the ex- ception of the cloud negative shown on the right, were thrown on it through an enlarg- mg camera, and the relative sizes and positions marked out. Numbers 1, 2, 3, 4, 5 and 6 are exposures of the same negative through a ragged hole in a sheet of paper held between the light from the lens of camera and the paper on the enlarging board. Numbers 7, 8, 9, and 10 are differently focused views of the same aeroplane

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