feet are black. The length of this species is two feet four inches, breadth three feet; the longest tail-feathers

are fifteen inches, and the rest five inches. The Red-tailed Tropic Bird is met with throughout the warm and temperate parts of the South Seas and Indian Ocean; during August and September it retires to breed upon the islands. The following description of the eggs and young was given to Mr. Gould by Macgillivray:—

"The eggs of the P. Phœnicurus are blotched and speckled with brownish red on a pale reddish grey ground, and are two inches and three-eighths long, by one inch four-eighths and a half broad. The contents of the stomach consisted of the remnants of cuttle-fishes."

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THE WHITE-TAILED TROPIC BIRD (Phaëton æthereus). ONE-FOURTH NATURAL SIZE.

Latham states that these birds are found in great numbers in the Island of Mauritius, where they make their nests on the ground under trees. According to Bennett, "The nestlings have a singular appearance, resembling powder-puffs, being round as a ball and of a delicate snow-white colour; the plumage of the first year is white speckled with black, and they are deficient in the red shafts projecting from the tail, which do not make their appearance till the second year, when on the young bird moulting, the splendid and delicate roseate plumage is displayed."

The GANNETS (Sula) are larger but more slenderly built than the Tropic Birds. Their bill is longer than the head, and the upper mandible looks as though it were divided posteriorly into an