1935 Sauk Valley, Minn. {SB} 1936 Lake Mohave, Calif. {OP} 1936 Sandia Cave, N.M. {F} {FP*} {M} {EB} {S} {OP} {CC} {EC} {EH} 1936-1937 Cerro Sota Hill, Chile {SB} {OP} {S} {EH} 1936-1937 Fell’s Cave, Chile {OP} {CC} {S} {EH} 1936-1937 Palli Aike Cave, Chile {CB} {OP} {CC} {S} {EH} 1937-1945 Borax Lake, Calif. {F} {OP} {MS} {CC} 1938 Bee County, Tex. {OP} {CC} {M} {EB} {EH} 1938 Lipscomb County, Tex. {F} {EB} 1939 Ventana Cave, Ariz. {F*} {OP} {EB} {S} {EH} 1939 Mortlach, Sask. {F} {FP} {EB} 1940 Eden, Wyo. {C*} {EB} 1941 San Jon, N.M. {F} {FP*} {OP} {M*} {EB} 1941 San Luis Valley, Colo. {F} {FP*} {EB} 1941 Fairbanks, Alaska {FP} {M} 1941 Circle, Alaska {FP*} {M} 1941 Cook Inlet, Alaska {FP} {CC} {M} 1945 Plainview, Tex. {FP} {EB} 1946 Monument Site, {SB} {OP} Concord, Calif. 1946-1947 Tequixquiac, Mex. {BF} {M*} {EB*} {S*} {EC*} {EH*} 1947 Tepexpan, Mex. {SB} {OP*} {M*} 1948 Totolzingo, Mex. {BT} {M*} {EH*} 8 EARLY MAN AND THE GREAT EXTINCTION _And prate about an Elephant_ _Not one of them has seen!_ —J. G. SAXE A Twofold Problem A mammoth in Colorado ... a giant sloth near Hoover Dam ... spear points of early man involved with both. Those two remote and spectacular animals roaming our own United States set our minds far back on the trail of time. The weapons, crude as they were and pitifully small, carry us forward again tens of thousands of years. We are describing the reaction of the layman who first learns of these things, but the opinions of science veer almost as widely when it tries to date the traffic of man and mammoth in the New World. The range is from 100,000 years ago to 2500 B.C.