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Wilfred Trotter's book on the 'herd instinct' was published on the heels of World War I. To him, it made sense. For years, he had been arguing that Man, like all other animals (as demonstrated by Darwin), would be saturated in instincts and as such, prone to being managed like a man manages a herd.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.