characters from the rock-pigeon, yet
comparing the several sub-breeds of these
more especially those brought from distant countries, we can
→in these two cases, and in some but not in all other cases, an almost perfect series
between
→extremes of structure. Thirdly, those characters which are mainly distinctive of each
→for
instance the wattle and length of beak of the carrier, the shortness of that of the tumbler, and the number of tail-feathers in the
→are in each breed eminently variable;
and the explanation of this fact will be obvious when we
treat of
Fourthly, pigeons have been
and tended with the utmost care, and loved by many people. They have been domesticated for thousands of years in several quarters of the world; the earliest known record of pigeons is in the fifth
dynasty, about 3000 B.C., as was pointed out to me by Professor Lepsius; but Mr. Birch informs me that pigeons are given in a bill of fare in the previous dynasty. In the time of the Romans, as we hear from Pliny, immense prices were given for pigeons; "nay, they are come to this pass, that they can reckon up their pedigree and race." Pigeons were much valued by Akber Khan in India, about the year 1600; never less than 20,000 pigeons were taken with the court. "The monarchs of Iran and Turan sent him some very rare
and, continues the courtly historian, "His Majesty by crossing the breeds, which method was never practised before, has improved them astonishingly." About this same period the Dutch were as eager about pigeons as were the old Romans. The paramount importance of these considerations in explaining the immense amount of variation which pigeons have undergone, will
obvious when we treat of Selection. We shall then, also, see how it is that the
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