(ἔρως, τοῦτον, and μέτρον, a measure), an instrument invented by Dr Young, for measuring the fineness of the fibres of wool, by ascertaining the diameter of any one of the series of coloured rings they produce. See CHROMATICS, vol. vi., p. 631.
(ἔρως, τοῦτον, and μέτρον, a measure), an instrument invented by Dr Young, for measuring the fineness of the fibres of wool, by ascertaining the diameter of any one of the series of coloured rings they produce. See CHROMATICS, vol. vi., p. 631.