Abstract
IN the course of the study of the lamb's coat of various breeds of sheep, a range of fibre forms has been recognised by Duerden and Dry. In this method of classification, the apparent thickness of the fibres is of great significance; but analogous to results obtained from work on crimp, it is now suggested that it may not be entirely ascribed to increase of cross-sectional area, but may be due to a twist of the fibre. Thus a thick or thin filament would appear according as the major or minor axis of the cross-sectional ellipse was seen. Prof. Duerden kindly supplied typical prototrichs from the fleece of a Blackface lamb aged 1 month.
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References
NATURE, 130, 736, Nov. 12, 1932.
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BARKER, S. Fibres from the Coat of a Blackface Lamb. Nature 131, 799–800 (1933). https://doi.org/10.1038/131799a0
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DOI: https://doi.org/10.1038/131799a0
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