I can only say that the insurrection, however much of heroism and patriotic devotion it has subsequently embodied, appears to me to have been to a great extent artificially stimulated by a wonderfully dextrous management of the press and the telegraph and by a social machinery which no other nation than one of generations of illustrious exiles can command.Henry HotzeThe character of public opinion concerning contemporary foreign problems, despite abundant data and sophisticated analyses, is sometimes elusive; it is of course more tenuous respecting issues of an earlier era when polling techniques were unknown. Studies of mid-Victorian public opinion and foreign policy by B. Kingsley Martin on the Crimean War and Miriam B. Urban on the Italian War of Unification have by necessity equated the attitudes of the press, Parliament, and public addresses with public sentiment. They often assume that, under circumstances such as Russophobia and sympathy for national liberty, certain pin pricks of events elicit spontaneous and genuine expressions of public opinion. To be sure, this assumption has some validity. But owing to the paucity of documentary evidence, propaganda has received altogether too little attention.The writings of Polish agents for 1863 provide a basis for illuminating an instance of propaganda in the mechanics of mid-Victorian public sentiment. Yet J. H. Harley and K. S. Pasieka, while charting the course of English opinion in 1863, have almost completely ignored propaganda, while Henryk Wereszycki has treated it cursorily. This essay, consequently, aims to draw back the curtains a bit, go backstage, and observe how actors received suggestions, inducements, and sometimes even scripts to perform their roles.