1844-1930 administration agriculturalindustries agriculture animalculture biography business chemists climaticchangeprevention climatology economics employees environmentalpolicy familyfarms food foodadditives foodindustry foodinspectors foodsupply governmentpolicy harveywashington history industries livestock meteorology politicalscience publicaffairs publicpolicy safetymeasures safetyregulations socialscience sustainableagriculture unitedstates vegetationandclimate wiley