"Then lift that manly right hand, bold ploughman of the wave! Its branded hand shall prophesy 'Salvation to the Slave!' Hold up its fire-wrought language that whoso reads may feel His heart swell strong within him, his sinews change to steel." [189] =§ 51. Unpopularity of the Fugitive Slave Act of 1850.=--The passage of the new law probably increased the number of antislavery people more than anything else which had occurred during the whole agitation. Many of those formerly indifferent were roused to active opposition by a sense of the injustice of the Fugitive Slave Act as they saw it executed in Boston and elsewhere. Hence, in the cases of the period from 1850 to the outbreak of the Civil War, we shall find a new element. The antislavery party, grown strong, resisted the regulations, and instead of the unquestioned return of a fugitive, as in colonial times, or of prosecutions carried on under the simple conditions of the act of 1793, the struggle became long and complex. In fact during this time hardly an important case can be cited in which there was not some opposition to the natural course of the law. These exasperating effects were not at first apparent to the South, since before the famous rescues began several cases of rendition showed the power of the Executive. As the escapes grew more and more frequent yearly, increasing all the time in boldness, the slaveholders put forth greater efforts to punish the offenders, and prosecutions were numerous. But the "new law had no moral foundation," and against such an act public sentiment must sooner or later revolt, no matter how severe may be its provisions.[190] As Mr. James Freeman Clarke has said, "It was impossible to convince the people that it was right to send back to slavery men who were so desirous of freedom as to run such risks. All education from boyhood up to manhood had taught us to believe that it was the duty of all men to struggle for freedom."[191] =§ 52. Principle of the selection of cases.=--The large number of cases occurring between 1850 and 1860 renders it impossible to present a detailed account of them all in a brief monograph. The selection, therefore, includes only such as are typical of the various phases of the agitation.