CHAP. xin. THE GLACIAL PERIOD. 229 



CHAPTER XIII. 



CHRONOLOGICAL RELATIONS OF THE GLACIAL PERIOD AND THE 



CHRONOLOGICAL RELATIONS OF THE CLOSE OF THE GLACIAL PERIOD 



AND THE EARLIEST GEOLOGICAL SIGNS OF THE APPEARANCE OF MAN 



EFFECTS OF GLACIERS AND ICEBERGS IN POLISHING AND SCORING 

 ROCKS SCANDINAVIA ONCE ENCRUSTED WITH ICE LIKE GREENLAND 

 OUTWARD MOVEMENT OF CONTINENTAL ICE IN GREENLAND MELD 

 CLIMATE OF GREENLAND IN THE MIOCENE PERIOD ERRATICS OF 

 RECENT PERIOD IN SWEDEN GLACIAL STATE OF SWEDEN IN THE POST- 

 PLIOCENE PERIOD SCOTLAND FORMERLY ENCRUSTED WITH ICE ITS 



SUBSEQUENT SUBMERGENCE AND RE-ELEVATION LATEST CHANGES 

 PRODUCED BY GLACIERS IN SCOTLAND REMAINS OF THE MAMMOTH 

 AND REINDEER IN SCOTCH BOULDER CLAY PARALLEL ROADS OF GLEN 



EOY FORMED IN GLACIER LAKES COMPARATIVELY MODERN DATE OF 



THESE SHELVES. 



THE chronological relations of the human and glacial pe 

 riods were frequently alluded to in the last chapter, and 

 the sections obtained near Bedford (p. 164), and at Hoxne, 

 in Suffolk (p. 168), and a general view of the Norfolk cliffs, 

 have taught us that the earliest signs of man's appearance in 

 the British Isles, hitherto detected, are of post-glacial date, 

 in the sense of being posterior to the grand submergence of 

 England beneath the waters of the glacial sea. But long 

 after that period, when nearly the whole of England North of 

 the Thames and Bristol Channel lay submerged for ages, the 

 bottom of the sea, loaded with mud and stones melted out of 

 floating ice, was upheaved, and glaciers filled for a second 

 time the valleys of many mountainous regions. We may now 

 therefore inquire whether the peopling of Europe by the 

 human race and by the mammoth and other mammalia 



