Page:Quarterly Journal of the Geological Society of London, vol. 26.djvu/211

1869.] SEARLES WOOD — BOULDER-CLAY. 111 Mr. Searles V. Wood, Jun., stated that he had relied on Mr. Gwyn Jeffreys's works for his classification of the shells as being arctic or otherwise. He regarded the succession of the various members of the Glacial series of the eastern side of England as well founded, and borne out also by the molluscan remains. He utterly repudiated the notion that the Chillesford, Bridlington, and Kelsea-Hill beds were on the same horizon. He believed nearly the whole of the Scotch beds to be newer than those of the Middle and Lower Glacial. He quoted Prof. Phillips as suggesting a change in the relative elevations around Shap Fell since the dispersion of the boulders, and offered as his own explanation the hypothesis that the passes by which the boulders travelled were those which, though at the higher levels, were the soonest freed from ice. He thought that the direction of the current was influenced by other causes than the general trend of the rocky dividing ridge.