1852-1943 20esiècle 20thcentury autobiography battlecreeksanitarium(battlecreek biography business canada conservationists culturalassimilation daly diagnosis dock economics education entrepreneurship george governmentrelations gérantsdebandeindienne histoire history historybattlecreeksanitarium(battlecreek historykelloggcompany historykelloggtoastedcornflakecompany illinois indianagents indians indiansofnorthamerica indiensd'amérique industrialists jens jensen johnharvey johnmclean kellogg landscapearchitects landscapearchitecture lewis medical medicaleducation methods michigan nativeplantgardening ontario physicians relationsavecl'état robertj studyandteaching teaching treatmentof unitedstates wz100d637d1987