The Technique of Social Progress

accelerating Acheulean achieved agriculture American Indian ancient animistic Assyria Aurignacian belief bridge century changes Christian civilization conception conclusions culture death discovery disease dogmatic early earth economic Egypt emotional empires ethical evidence evolution experience factors facts Give reasons Greek groups human hypothesis increase industrial Industrial Revolution innovation invention inventors labor levels Literary Digest Lower Paleolithic machine Magdalenian magic and religion Maya medieval ment mental Mesolithic metaphysical methods Mexico modern modern primitive monogamy Mousterian Neanderthal Neolithic Old World organization origin Paleolithic parallel percent persons Piltdown points political pottery pre-Columbian prehistoric primitive problem produced progress reasons for agreeing relations religion religious Roman Rome scales of living Scientific Monthly sexual skull slaves Solutrean spirit stages Summarize technological theory tion tribes United Upper Paleolithic W. I. Thomas weaving Wissler women workers York