DISCOVERY OF MAMMALIAN REMAINS AT GREAT YELDHAM. 117 of the fossils themselves. It is due to the efforts of Mr. Wade and Mr. Goodchild that these remains have been preserved, and not destroyed like others found in this pit some years ago. Among the specimens preserved by Mr. Wade, and those still in the hands of the workman at the pit, we were able to detect evidence of six distinct forms of mammals, some of which are now extinct, and are charac- teristic of the Pleistocene Age, as the Elephant and Rhinoceros, while others are of interest as being of somewhat rare occurrence in beds of this age, as the Brown Bear and the Roebuck. The extinct Ox and the Red Deer are among the commonest of Pleistocene forms. " The Elephant is represented by a fragment of a tooth, insufficient for definite determination, but probably belonging to Elephas primigenius (Mammoth). The Rhinoceros is, undoubtedly, Rhinoceros leptorhinus ; portions of a lower jaw with grinding- teeth have been found. The extinct Ox (Bos taurus, var. primigenius) is almost certainly represented by some large grinding-teeth and foot- bones ; but the characteristic skull and horn cores have not been met with. Many fragments of the antlers and limb bones of the Red Deer (Cervus elaphus) were among the remains, and seem to be more abundant than those of any other species. The Roebuck (Capreolus caprea) is shown to be present by a single antler, which is interesting as this animal is by no means common in Pleistocene beds. The Brown Bear (Ursus arctos) is another somewhat rare form in beds of this age, and does not seem to have been hitherto recorded in Essex. Although once a native of Britain, the Brown Bear appears to have been exterminated some time before the Norman Conquest. The four upper grinding teeth and a canine tooth of this Bear, which have been found here, are in a perfect condition, and make one hopeful that more complete specimens of Pleistocene mammals will yet be met with at Great Yeldham. " Thanks to the generosity of Mr. C. Wade, examples of all the species above mentioned are now preserved in the Museum of Practical Geology, Jermyn Street, London." As regards the age of the deposits at the Great Yeldham Brickyard, there can be no doubt that they should be classed (as Mr. Whitaker has done in the Memoir on Sheet 47) as Post Glacial, in the sense of being of later date than the Chalky Boulder Clay which covers the surface of most of northern Essex, except where, in the valleys of