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 been pulsating so rapidly is as of a pause. This pause, or rather this rest-in-speed, as the bird, renouncing all effort, is carried swiftly and placidly onwards in a curve of the extremest beauty has a delicious effect upon one. One's spirit goes out until one seems to be with the bird oneself, hanging and sweeping as it does. Yet in this glory of motion it will often be shot by beings, in all grace and beauty and poetry of life, how infinitely its inferiors! This makes me think of Darwin's comment upon Bate's account of a humming-bird caught and killed by a huge Brazilian spider, wherein the destroyer and the victim—"one, perhaps, the loveliest, the other the most hideous in the scale of creation" —are contrasted. Spiders, too, had they their Phidiases, might be idealised and made to look quite beautiful in marble, even perhaps to our eyes (what cannot genius do?) whilst to their own, of course, the spider form would be "the spider form divine."

Wood-pigeons will also fly circling about above the trees in which they have been sitting, in rapid pursuit of each other, and whilst doing so, one or other of them may be heard to make a very pronounced swishing or beating sound with the wings, reminding one of the peewit, nightjar, and a great many other birds. Of instrumental music produced during flight, the snipe is a familiar example. Here, however, the very peculiar and highly specialised sound known as bleating or drumming is produced, not by the feathers of the wing, but by those of the tail, which have been specially modified, as we may suppose (those, at least, of us who are believers in that force), by a