Hydrochloric acid at once bleaches it with liberation of sulphuretted hydrogen and milk of sulphur.
The fibre bleaches with facility, up to a certain point, sufficient to enable it to take brilliant and delicate shades of dye colour, but it is with great difficulty brought to a pure white by bleaching.
The tail, too, is shorter than in the red-deer; while in winter the under parts become very dark, and the upper surface often bleaches almost white.
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