| Show Level Leyel of Sea Sank Sant Half Mile During the Ice Age V Once A S 11 I N G T TON 0 N NOnce Once early in the great Ice age about a million years ears ago the level le o of the sea was feet lower than It Is now and aud the missing water wa wa- ter was piled lIed high upon the c continents con con con- n- n as Ice of great glaciers This picture WM wits presented J to the National Academy of Sciences recently re re- by Prof Prot Francis 1 p. p Shepard University of Illinois geologist as a result of his Investigations In of great cut river canyons canons of the sea floor 1 some of them feet teet fe t below the oceans ocean's surface or about twice the the depth of famous Grand Orand canyon In Arizona One explanation of how the they were ere formed forme-d Is that the trusts coasts of the world were WE're raised up UI above aboTe their present position during the glacial ported period Professor Shepard consid ers era such a gigantic movement nt la in relatively recent times as scarcely creditable Instead he told toU the tha academicians that It Is II much more Inore s rEl reasonable that the sea BEa level le changed at due tl to the th withdrawal of water Mater from rom the preens oceans to form farm tho rho great areat sh sheets ts of lc Ice that covered the tho i laud 1111 nj and that rivers cut tut the underwater ahr d canyons c now no being discovered l. |