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And now we have the "wool meter." Speaking of taxi-meters, yardsticks, and other measuring devices, the "wool meter" has been introduced by the Bureau of Standards. Described by the forbidding name "eriometer," this new instrument is intended to measure the diameter of wool fibers and thus indicate the relative qualities of the fleece entering into our wool clothes. H.J. McNicholas of the Textile Section is shown with his invention, which employs the principle of diffraction of light

And now we have the "wool meter." Speaking of taxi-meters, yardsticks,...

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