56 Mr. Henry Walker's Lecture: themselves no inconsiderable item. Sir Antonio may well assure us that elephant-hunting in Essex is really an expensive hobby. And now the grander trophies of elephant-hunting in Essex are to reward our eyes, the spectacle of the various skeletons of elephant, rhinoceros, and deer that have thus been excavated from these fields in the Barking and London- road. We take train at Ilford for Stratford. We soon arrive at Sir Antonio Brady's private museum at Stratford- le-Point, which we are kindly invited to inspect. Here is a brief account of some of the sights we were privileged to witness in this wonderful collection of the old-world zoology of the Thames Valley. The five bisons' crania which were discovered in the Uphill pits are lying upon a table, and are still enclosed in plaster. They have now to be boiled or soaked in a fluid which shall restore to them the gelatine they have lost during the millenniums they have been buried in the bosom of the earth. This is the process which all the bones and tusks undergo to ensure their permanent hardening. On the shelves around is a startling display of gigantic skulls and monstrous bones—bones such as Samson might have coveted when an ass's jawbone was his only weapon. Here is a mammoth's tusk ten feet in length. The teeth and jaws represent elephants of every age and size, from the sucking calf with his milk molars, to the patriarch of the herd, whose ultimate molars are so worn down as to be almost useless for grinding his food. Professor Owen has seen a mammoth's tooth that measured one foot seven inches in length, following the curve from end to end on the convex side ! The characteristic of the Ilford elephants is the number of the plates in the last molars, which has not been found to exceed 19 or 20, as against the 24, and sometimes 28, found in other species. The largest tooth is 10 inches in length. The spectator cannot fail to be struck with the long spiral curves of the tusks of the adult mammoths, as compared with the almost straight tusks of the more familiar species of modern days. Yet in spite of the enormous size