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The Descent of Man

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the class previously alluded to, in which both<br />

sexes have varied in the same manner at a rather<br />

late period <strong>of</strong> life, and have consequently<br />

transferred their new characters to both sexes at<br />

a corresponding late period; and if so, these<br />

cases are not opposed to our rule:—there exist<br />

sub-breeds <strong>of</strong> the pigeon, described by Neumeister<br />

(46. 'Das Ganze der Taubenzucht,' 1837,<br />

ss. 21, 24. For the case <strong>of</strong> the streaked pigeons,<br />

see Dr. Chapuis, 'Le pigeon voyageur Belge,'<br />

1865, p. 87.), in which both sexes change their<br />

colour during two or three moults (as is likewise<br />

the case with the Almond Tumbler); nevertheless,<br />

these changes, though occurring rather<br />

late in life, are common to both sexes. One variety<br />

<strong>of</strong> the Canary-bird, namely the London<br />

Prize, <strong>of</strong>fers a nearly analogous case.<br />

With the breeds <strong>of</strong> the Fowl the inheritance <strong>of</strong><br />

various characters by one or both sexes, seems<br />

generally determined by the period at which<br />

such characters are developed. Thus in all the

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