At Cairo, Illinois, the Pullman-car conductor asked Peter Siner to take his suitcase and traveling-bag and pass forward into the Jim Crow car. The request came as a sort of surprise to the negro. During Peter Siner's four years in Harvard the segregation of black folk on Southern railroads had become blurred and reminiscent in his mind; now it was fetched back into the sharp distinction of the present instant. With a certain sense of strangeness, Siner picked up his bags, and saw his own form, in the car mirrors, walking down the length of the sleeper. He moved on through the dining-car,...