. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 310 Mr. A. J. Jukes-Browne on the breaks away along joint-planes, which are often discoloured, and still further obscured in summer time by the mud washed down from above. Sir Charles Lyell writes as follows* :— " A layer of chalk flints in situ shows that the stratification of the chalk is vertical, although the beds seen in a large cave Fig. Northern Bluff, Trimminghani, 1839. «. Chalk; b. Sand; c. Boulder-clay. facing the sea show a slight curvature ; Oth


. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 310 Mr. A. J. Jukes-Browne on the breaks away along joint-planes, which are often discoloured, and still further obscured in summer time by the mud washed down from above. Sir Charles Lyell writes as follows* :— " A layer of chalk flints in situ shows that the stratification of the chalk is vertical, although the beds seen in a large cave Fig. Northern Bluff, Trimminghani, 1839. «. Chalk; b. Sand; c. Boulder-clay. facing the sea show a slight curvature ; Others have considered the beds to be nearly horizontal; and certainly the flint layers in the upper portion of the mass appeared to be so in 1875. Mr. Clement Reid, in his recent paper on the Glacial de- posits of Cromer, has completely explained these conflicting appearances f. He had opportunities of visiting the spot after winter storms had cleared the section; and he discovered that the beds are bent into a sharp curve or loop, and are so contorted as to be horizontal in one place and nearly vertical in another. The diagram (fig. 3) is an enlargement of part of the cross section given by Mr. Eeid. Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London, Taylor and Francis, Ltd


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Keywords: ., bookce, booksubjectbotany, booksubjectgeology, booksubjectzoology