_Hertfordshire, Essex, Suffolk_, and _Norfolk_, contain a larger proportion of small heads than any part of the empire; Essex and Hertfordshire, particularly. Seven inches in diameter is here, as in Spitalfields and Coventry, quite unusual--6-5/8 and 6-1/2 are more general; and 6-3/8, the usual size for a boy of six years of age, is frequently to be met with here in the full maturity of manhood. _Kent, Surrey_, and _Sussex_.--An increase of size of the usual average is observed; and the inland counties, in general, are nearly upon the same scale. _Devonshire_ and _Cornwall_.--The heads of full sizes. _Herefordshire_.--Superior to the London average. _Lancashire, Yorkshire, Cumberland_, and _Northumberland_, have more large heads, in proportion, than any part of the country. _Scotland_.--The full-sized head is known to be possessed by the inhabitants; their measurement ranging between 7-3/4 and 7-7/8 even to 8 inches; this extreme size, however, is rare.--_Literary Gazette_. * * * * * The Naturalist ZOOLOGICAL GARDENS. The laying-out of the tract of ground on the northern verge of the Regent's Park, and divided from the present garden of the Zoological Society, has at length been commenced, and is proceeding with great activity. We described this as part of the gardens in our illustrated account of them in No. 330 of the MIRROR, and we now congratulate the Society on their increased funds which have enabled them to begin this very important portion of their original design. For the purposes of these alterations, the belt of trees and shrubs which formed so complete and natural a barrier between the road and canal, will be removed; but when the buildings, &c. are completed, trees and shrubs are to be replanted close to the road. In addition to huts, cages, &c. for the reception of living animals, it is said that a building will be erected in the new garden for the whole or part of the Society's Museum, now deposited in Bruton Street. This is very desirable, as the Establishment will then combine similar advantages to those of the _Jardin des Plantes_ at Paris, where the Museum is in the grounds. The addition of a botanical garden would then complete the scheme, and it is reasonable to hope that some of the useless ground in the park may be applied to this very serviceable as well as ornamental purpose. The communication between the present Zoological exhibition, and the additions in preparation, will be by a vaulted passage beneath the road. This subterranean passage will be useful for the abode of such portions of varied creation as love the shade, as bats, owls, &c. * * * * * THE GIRAFFE. The King's Giraffe died on Sunday week, at the Menagerie at Sandpit-gate, near Windsor. It was nearly four years and a half old, and arrived in England in August, 1827, as a present from the Pacha of Egypt to his Majesty.