. A regional geography of the world, with diagrams and entirely new maps . ntarctic Continent, of Greenland and of many ofthe islands off the North of Canada, are buried beneathgreat caps of ice of unknown thickness. These ice-capsare formed of snow pressed into ice. Every year snowfalls on the lands, and the greater the fall the greater thepressure. Just as an unkind boy by long pressure canpress a snowball so that it becomes a hard ball of ice,so the pressure of the most recently fallen snow convertsthe lower layers into ice. The pressure is steadilyexerted year after year so that the ice-sh
. A regional geography of the world, with diagrams and entirely new maps . ntarctic Continent, of Greenland and of many ofthe islands off the North of Canada, are buried beneathgreat caps of ice of unknown thickness. These ice-capsare formed of snow pressed into ice. Every year snowfalls on the lands, and the greater the fall the greater thepressure. Just as an unkind boy by long pressure canpress a snowball so that it becomes a hard ball of ice,so the pressure of the most recently fallen snow convertsthe lower layers into ice. The pressure is steadilyexerted year after year so that the ice-sheet pressesoutwards very slowly. Along the coasts of Greenlandand of the Antarctic, where the edge of the sheet ispressed out to sea, large blocks break off and float awayas icebergs. The western coastal strip of Greenland is habitableand there we find Eskimos who hunt seals, walruses,and polar bears. In summer these northern seas andcoasts are also visited by whaling fleets from BritishColumbia, Newfoundland, Scandinavia, Britain, etc. 48 MAJOR NATURAL REGIONS OF WORLD. to > (3 3 cd c 13 4> RKGIONS IN COLD LANDS 4g Ilicre is no permanent settlement in tlie Antarctic,where the concHtions arc even more inhospitable, but,as we know from the wonderful pictures of Scott andShackleton, whales, seals, and penguins manage to findthe means of life. For man, the land is a region ofhunger and great privation, and without outside help aland in which he must die. In the winter the sun isnot seen above the horizon for many days—the exactnumber depends upon the latitude—whilst the summeris one long day. EXERCISES. (Some of these exercises are designed to test the background ofgeneral geographical principles which the student should possessin order to appreciate fully the text of Part I of this book.) 1. Write an account of an imaginary trip up the Amazon fromPara to Manaos. 2. What are Trade W^inds ? Where do they blow ? Whateffect have they {a) over the oceans, (d) over the lands
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