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 more quickly, if that were possible—so quickly that there is just a swirl on the water, the appearance seems part of the disappearance, 'and nothing is but what is not.' And this, as I think, continues, but owing to the rapid progress of the birds under the water, and their getting amongst flags and weeds, I never have an equally 'convincing' sight of it."

Now, here, on the 4th February, we have, as in the case of the peewits, three birds together, all in pursuit of each other, but two, as it appeared to me, in a little more intimate association, and the third seeming to wish to make a third. They chase each other excitedly down the stream for a little, then all pitch down upon it and dive, and one, upon coming up, dives again at the merest sight of another who behaves similarly, a peculiarly set and rigid attitude being adopted by the waiting bird. Is this not something like a little romp or water-dance following on the excitement of the chase? True, it may have been fighting between the two males, for dabchicks, like the great crested grebe and other water-birds, probably fight by diving and attacking each other beneath the surface. To my eyes, however, it had very much the appearance of a romp, or, at any rate, a something betwixt sport and earnest. Assuming it to have been so, then here is a habit of a sport or antic between three birds at the end of an excited chase of each other. Now supposing this habit to increase, then, as the birds became more enamoured of their little sport—as it became more and more a fixed habit with them—is it not likely that the preliminary chase before the romp began would be thrown more