Show to test menace of new ice age ai macmillan expedition will study recent movements of glaciers in greenland new tort Is another ice fee age coming are the scenes of the latter pleistocene age the geologic period which bich immediately preceded our own to be repeated and if go BO what will wal it mean to the inhabitants of the earth in anan an effort to determine whether there Is any likelihood of such a cataclysmic occurrence the macmillan expedition tion recently left for greenland to study the recent movements of glaciers on that island continent the great ice age ended according to scientists about rears ears ago but th ice has left its footprints by which its advances and retreats and movements may be traced durias the ice age or the glacial period there was a marked lowering of temperature over the whole earth and or square cities of the globes surface became covered with ice half the region thus covered lay in north america more than half the remainder lay in europe but tar far away even to the tropical forests of india and the mountains of asia occurred where here there had been no ice previous to the ice age on mountains which now bear burdens of continual snow and ice the snow enow line descended cen ded feet lower than it Is at present human beings succumbed Iiii imagine agine great sheets of ice and hard packed snow creeping ever so slowly but barely over the temperate teas of europe and america and imparting to them an arctic cold to u bleb ninny many of those early human beings who in their sav savagery agery 0 were little better than beasts succumbed these theae mighty layers of ice miles and miles in thickness eRness spread over rivers and mountains and plains filling up tip the cheval val leitt und and the lakes and the seas in ID kurp the ice fee moved forth from the st si highlands and burled buried the lowlands of belgium Ri russia assia den emirl c germany and holland and then crossing the north sea touched the shores of britain besides these rest continental ice sheets large in thi ln bidual glaciers formed la in the valys beys of the alps and spread out ont in all directions separate glaciers joined on in the plains of france and italy and in the rhine and danube valleys four times the enormous sheets of tee ice advanced and covered the land I our times they retreated after un iminter centuries each time leaving it terminal moraine of boulders earth end and other febres which serves as an indication of the route of the ire ice on its advance southward the second of these four glacial advances brought the ice farther south in north america the terminal moraine ot of the ice can still be observed and followed in it a roughly correct line over long island through the town of jamaica as tar far south as perth amboy N J the line then runs in a northwesterly direction through a point where the town of morristown Is now located the smooth low plains of the upper mississippi valley were covered with ice while the ohio and missouri rivers owe their beginning to the glacial advances of the ice age leaves its lt mark not only by the terminal moraines mo mor raines alnes which indicate the extent of the various ice fee advances can the route of gla elation be rend read the passage of ice over the hard rocky floor of the earth leaves a peculiar kind of marking this erosion due to the work of glaciers and ice sheets la Is of a a smooth rounded nature imparted to the rocks which contrasts decidedly with the plona pinnacled cled irregular surfaces which are the work of ordinary weathering the whole of the enormous island of greenland Is catered with an ice cup cap or ice sheet which pres pressing slug down under the weight of accumulated snow of centuries imparts a gradual movement to the various glaciers along its edges |