transparent hat being a common cassimere hat and the process. how it is possible that under the existing circum stances the photograph can show the face of one gentleman through the hat of another. If there room it might not be so hard to explain.' prehensive and thorough. Published by Appleton & Co. New York City., scientific american, 66-09-08

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transparent hat being a common cassimere hat and the process. how it is possible that under the existing circum stances the photograph can show the face of one gentleman through the hat of another. If there room it might not be so hard to explain.' prehensive and thorough. Published by Appleton & Co. New York City., scientific american, 66-09-08

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