Explorations: Animal Farm: Long Term History: America:The comparative efficiency of different animals

Description

Background to the Channel 4 Millennium Series ‘The Day the World Took Off’, shown in 2000. With thanks to Windfall Films.In answer to David Dugan, Joel Mokyr explains the different efficiency of certain animals, pigs, horses, cows, the nature of open field agriculture, the growing of fodder crops, camels and buffaloes.