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Show Head of Cervulus crinifrons. Obs. Readily known from all other species of Cervulusby its bushy forehead, which much resembles that of Elaphodus michianus, and bv its long tail. 2. A young male Nubian Ibex {Copra nubiana), presented December 30th by Mrs. Laing, of Thornhill, Sunderland. This Ibex is accompanied by a Domestic Goat, with which it has bred and produced a male hybrid, which closely resembles its male parent. The species is new to the Society's Collection. Mr. Sclater called attention to the breeding of a pair of the Chinese Blue Magpie {Cyanopolius cyanus) in the Society's Gardens in 1884, and exhibited specimens of their eggs. Six eggs were laid in May in an open nest, made of sticks and lined with grass and wrool, in the Western Aviary. The period of incubation was about 18 days, and four young birds were hatched on June 11. The young birds remained about three weeks in the nest. They had black heads upon assuming their first plumage, but at first of a dull black. By the end of the year they were so like their parents that it was impossible to distinguish them. About a fortnight after the young birds left the nest a second clutch of eggs was laid, but came to nothing. The eggs were of a pale greenish stone-colour, freckled with two |