The question of the extradition of fugitive slaves in colonial times 290 Importance of the question in the constitutional conventions 293 Failure of the Fugitive Slave Law of 1793 294 Agitation for a more efficient measure 295 Diplomatic negotiations for the extradition of colored refugees from Canada, 1826-1828 299 The fugitive slave a missionary in the cause of freedom 300 Slave-hunting in the free states 302 Preparation for the abolition movement of 1830 303 The Underground Railroad and the Fugitive Slave Law of 1850 308 The law in Congress 310 The enforcement of the law of 1850 316 The Underground Road and _Uncle Tom's Cabin_ 321 Political importance of the novel 323 Sumner on the influence of escaped slaves in the North 324 The spirit of nullification in the North 327 The Glover rescue, Wisconsin, 1854 327 The rendition of Burns, Boston, 1854 331 The rescue of Addison White, Mechanicsburg, Ohio, 1857 334 The Oberlin-Wellington rescue, 1858 335 Obstruction of the Fugitive Slave Law by means of the personal liberty acts 337 John Brown's attempt Lo free the slaves 338 CHAPTER XI EFFECT OF THE UNDERGROUND RAILROAD The Underground Road the means of relieving the South of many despairing slaves 340 Loss sustained by slave-owners through underground channels 340 The United States census reports on fugitive slaves 342 Estimate of the number of slaves escaping into Ohio, 1830-1860 346 Similar estimate for Philadelphia, 1830-1860 346 Drain on the resources of the depot at Lawrence, Kansas, described in a letter of Col. J. Bowles, April 4, 1859 347 Work of the Underground Railroad as compared with that of the American Colonization Society 350 The violation of the Fugitive Slave Law a chief complaint of Southern states at the beginning of the Civil War 351 Refusal of the Canadian government to yield up the fugitive Anderson, 1860 352 Secession of the Southern states begun 353 Conclusion of the fugitive slave controversy 355 General effect and significance of the controversy 356 ILLUSTRATIONS, PORTRAITS, FACSIMILES AND MAPS