A specimen very similar to that discovered by Capt. Brickenden, but of a young individual, was found soon afterwards in a quarry near Horsham; but I was not allowed the privilege of figuring or describing it!] In the course of last summer I obtained a very instructive fragment of the middle part of the right ramus of the lower jaw of a much larger Iguanodon, found by Mr. Fowlestone, with some enormous bones of the extremities, in the Wealden strata of the Isle of Wight. A portion of the upper jaw (without teeth) was discovered some years since in Tilgate Forest, and is deposited, with the whole of the collection I formed at Brighton, in the gallery of organic remains of the British Museum. These three specimens are the only parts of the jaws of the Iguanodon, with the exception of a fragment of the angular bone, that I have had the opportunity of examining. The other portions of the skeleton hitherto discovered are the following: the tympanic bone;[134] cervical, dorsal, lumbar, and caudal vertebræ, and chevron bones; ribs; the iliac bones, and sacrum composed of six anchylosed vertebræ;[135] the coracoid, scapula and clavicles; humerus, radius? metacarpals; femur, tibia and fibula, metatarsals and ungueals. The cranium, carpals, and tarsals, have not been discovered. [Footnote 134: This may or may not belong to the Iguanodon: no tympanic bone has been found in such connexion with other parts of the skeleton as to afford certain proof that this maxillary element is referable to the Iguanodon.] [Footnote 135: In the Megalosaurus, the sacrum consists of five anchylosed vertebræ.] With the exception of the assemblage of bones promiscuously grouped together in a block of _Kentish rag_ (of the greensand formation), found in a quarry near Maidstone, by Mr. Bensted,[136] a few connected caudal vertebræ, and two or three instances in which a femur, tibia, and fibula and some metatarsals, were found in contiguity, all the bones were isolated. They have been obtained from the quarries in St. Leonard's and Tilgate Forests, near Loxwood, Rusper, Horsham, Cuckfield, and Battel; and from the cliffs at Hastings, and in Sandown, and Brixton, and Brook Bays, on the southern shore of the Isle of Wight. [Footnote 136: This most instructive specimen is in a glass-case on the floor near the window, in the middle room of the Gallery of Organic Remains in the British Museum. All the Wealden reptilian remains of a large size, collected by me when residing in Sussex, are in the upright glass cases in the same apartment.]