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Scientific American, Vol. 57, No. 3 (1887) (1887)
leaf 7
rom the combina- from 5 to 10 per cent; then in bleaching, the ten- but the process which it is employed to carry out is sion of the drawing rollers on the softened fibers con- one which excites great interest in the stranger, as it tion being white. Besides these methods, the spectrum deals with… … © 1887 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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