276 S. HAZZLEDINE WARREN. Essex.—I would draw attention to the following published records, as being worthy of re-examination :— Blackwater Valley.—Boulder Clay is reported to occupy the valley at certain places, and the Pleistocene River gravel at Kelvedon and Witham is said to overlie this Boulder Clay (26). Kelvedon-Tollesbury new railway sections.—Many years after the above record, the Essex Field Club visited the excava- tions in progress and Mr. Whitaker is reported to have found a palaeolithic flake in the river gravel. Chalky Boulder Clay was observed underlying the gravel (27). Felstead-Stebbing district is also claimed to furnish simliar evidence (28). Chelmsford.—The river valley is cut through a plain of Boulder Clay, into the underlying glacial gravel. Pleistocene river deposits with Elephas, Rhinoceros and Hippopotamus occur in the valley ; while the lowest bed of these deposits is in one case a blue clay with chalk pebbles, evidently re-deposited Boulder Clay which must, therefore, have been pre-existent (29). Braintree.—Pleistocene brickearth with Elephas and palaeo- lithic flakes flanks the Holocene alluvium of the valley. It seems incredible that the Glacial Period, with its Boulder Clays, etc., can come between them (30). Great Yeldham.—Brickearth and gravel with Elephas, Rhinoceros, etc., are stated to lie in a hollow in Boulder Clay, unconnected with the present streams (31). I give no personal endorsement upon the reliability of the above-mentioned evidences, but they appeal to me as being worthy of the attention of local workers. CONSTRUCTIVE. As previously hinted, it scarcely seems too rash to venture a tentative correlation between the very cold Sicilian stage of the Mediterranean, and the Weybourne Crag, as both alike are very near to the border-line between the Pliocene and the Pleistocene. The Cromer Forest Bed is then an intermediate milder stage distinctively characterized by Elephas meridionalis, Rhinoceros etruscus, etc., which became either extinct, or very scarce, before the Chellian stage. It has been suggested that these earlier forms are derivatives from an older deposit, while Ele- phas antiquus, etc, is contemporary. Examination of the condition of the remains, particularly the mandibles with the molars in place, shows to my mind that this suggestion is untenable, and that all are equally contemporary.