"The Troubles of a Trust" is the title of another instalment of Miss Tarbell's history of the Standard Oil Company in the March McClure's. After his great machine was perfected, Mr. Rockefeller wished to be let alone, but, as Miss Tarbell remarks: "Probably the greatest trial Mr. Rockefeller has ever had has come from the persistency with which the malcontents have kept him before the public." It is an interesting chapter. And the magazine contains more of interest.