When Orwell went to the north of England in the thirties to find out how industrial workers lived, he not only observed but shared in their experience. He stayed in cramped, dreary lodgings and subsisted on the scant, cheerless diet of the poor. He went down into the coal mines and walked crouching, as the miners did, through a one- to three-mile passage too low to stand up in. He watched the back-breaking, dangerous labor of men whose net pay then averaged $575 a year. And he knew the...