The ice age in North America and its bearing upon the antiquity of man5th edwith many new maps and illus., enland rewritten to incorporate the facts that bring it up to date, with chapters on Lake Agassiz and the Probable cause of glaciation . ivocal. ProfessorShimeks judgment in the case is also greatly discounted byhis equally positive, but certainly, erroneous opinion that thedeposit in which the Lansing skeleton was found was clearlydistinct from ordinary undisturbed loess, evidently consistingof slumped material. In short there is no valid reason todoubt the glacial age of the loess in wh
The ice age in North America and its bearing upon the antiquity of man5th edwith many new maps and illus., enland rewritten to incorporate the facts that bring it up to date, with chapters on Lake Agassiz and the Probable cause of glaciation . ivocal. ProfessorShimeks judgment in the case is also greatly discounted byhis equally positive, but certainly, erroneous opinion that thedeposit in which the Lansing skeleton was found was clearlydistinct from ordinary undisturbed loess, evidently consistingof slumped material. In short there is no valid reason todoubt the glacial age of the loess in which the remains of theNebraska man were found. The relic described by Miss Owen is an implement ofpaleolithic type, chipped from a porphyritic pebble (probably * Nebraska Geological Survey, vol. ii, part 5, pp. 318-327; part 6,pp. 331-348. Also Records of the Past, , Feb. 1907, pp. 34-39. t Bulletin of Geological Society of America, vol. xix, pp. 243-2-54, 1908. 686 THE ICE ACE IN NORTH AMERICA. from the Black Hills, Dakota). The illustration speaks foritself. This was found projecting from the face of an oldcut for a road through the loess in the northern part of thecity of St. Joseph, Missouri. It was found not less than twenty. Fic 192—ImpleiTient from Dug HlU. (Afiss Owen). feet below the surface where there (;ould be no question con-cerning its undisturbed character. This is on the east side ofthe Missouri River, where the total depth of the loess is more than 100 feet.* * Records of the Past, October. 1907, pp. 28fi-292. CHAPTER XXIV. {Concluded). MAN AND THE LAVA BEDS OF THE PACIFIC COAST. The occurrence of human relics in the auriferous gravelsof California, where in some places they are capped with ex-tensive lava overflows, though still a subject under hotdiscussion is too important and interesting to be passed overwithout a full detail of the facts. The connection of thesefacts with the glacial epoch, though inferential, is by no meansuncertain; for, confesse
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