Our readers need not be told that the Zoological Society is partly on the plan of the Museum of Natural History at Paris, except that the latter is supported by the Government, the Gardens are indiscriminately opened to the public, free of cost, and the Museum on stated days; and when we add that the names of Fagon, Duverney, Tournefort, Vaillant, De Jussieu, Buffon, Daubenton, Fourcroy, Desfontaines, De Lamarck, and Cuvier, occur in its list of professors, they will not be surprised at the Musée d'Histoire Naturelle being the richest of its kind in the world. * * * * * As acceptable information, we subjoin the regulations for the admission of members and visiters to the Gardens in the Regent's Park, and the _Museum_, in Bruton-street; to the latter we shall allude at an early opportunity:-- Every member shall have personal admission to the gardens and museum, with two companions. If accompanied by more than two, he shall pay one shilling for each extra person. A member, on payment of one guinea annually, may obtain an ivory ticket, which will admit one named person with a companion to both establishments; or a transferable ivory ticket which will admit one person. He may obtain two or more such tickets at the same rate. Any member who may find it inconvenient to attend personally at the gardens or museum, may, upon application to the council, have his privileges transferred, within the present year, to any individual of his family, whom he may name. Every member will be expected to give his name on entering the gardens and museum. The gardens will be open to members from eight o'clock, A.M.; but they will be in complete readiness for the reception of visiters only from ten o'clock to sunset. The museum will be open from ten o'clock to six. * * * * * HERSCHEL'S TELESCOPE. (_To the Editor of the Mirror._)