Black hardcover book. Front cover: What Social Classes Owe to Each Other - William Graham Sumner Spine: Social Classes - Sumner Obtained by Morse on September 8, 1883 Sumner was a Professor of Political and Social Science at Yale College

I: On a New Philosophy: That Poverty is the Best Policy II: That a Free Man is a Sovereign, But That a Sovereign Cannot Take "Tips" III: That it is Not Wicked to be Rich; Nay, Even, That it is Not Wicked to be Richer Than One's Neighbor IV: On the Reasons Why Man is Not Altogether a Brute V: That We Must Have Few Men, If We Want Strong Men VI: That He Who Would Be Well Taken Care of Must Take Care of Himself VII: Concerning Some Old Foes Under New Faces VIII: On the Value, as a Sociological Principle, of the Rule to Mind One's Own Business IX: On the Case of a Certain Man Who is Never Thought Of X: The Case of the Forgotten Man Farther Considered XI: Wherefore We Should Love One Another