The orientation of the grains in a dried
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L. Silberstein
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Article
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1921
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Elsevier Science
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English
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THE present lens is an outcome of the war-time activity of the Eastman Kodak Company in lens design and manufacture. A lens of 6 inches aperture and 48 inches focal length has been designed and constructed by the company for the aerial service, which passed the most rigid tests. The present lens is