In 1872, Still published The Underground Rail Road, a record of the efforts of slaves to free themselves and of those determined to help them.  The following excerpt describes the escape of Henry “Box” Brown from Virginia in 1848.

Henry "Box" Brown escapes slavery by having himself nailed into a small box and shipped from Richmond to Philadelphia. 

He was decidedly an unhappy piece of property in the city of Richmond, Va. In the condition of a slave he felt that it would be impossible for him to remain. Full well did he know, however, that it was no holiday task to escape the vigilance of Virginia slave- hunters, or the wrath of an enraged master for committing the unpardonable sin of attempting to escape to a land of liberty. So Brown counted well the cost before venturing upon his hazardous undertaking. Ordinary modes of travel he concluded might prove disastrous to his hopes; he, therefore, hit upon a new invention altogether, which was to have himself boxed up and forwarded to Philadelphia direct by express. The size of the box and how it was to be made to fit him most comfortably, was of his own ordering. Two feet eight inches deep, two feet wide, and three feet long were the exact dimensions of the box, lined with baize. His resources in regard to food and water consisted of the following: One bladder of water and a few small biscuits. His mechanical implement to meet the death- struggle for fresh air, all told, was one large gimlet. Satisfied that it would be far better to peril his life for freedom in this way than to remain under the galling yoke of Slavery, he entered his box, which was safely nailed up and hooped with five hickory hoops, and then was addressed by his next friend, James A. Smith, a shoe dealer, to Wm. H. Johnson, Arch Street, Philadelphia, marked, "This side up with care." In this condition he was sent to Adams' Express office in a dray, and thence by overland express to Philadelphia. It was twenty- six hours from the time he left Richmond until his arrival in the city of Brotherly Love. The notice, "This side up, etc.," did not avail with the different expressmen, who hesitated not to handle the box in the usual rough manner common to this class of men. For a while they actually had the box upside down, and had him on his head for miles. A few days before he was expected, certain intimation was conveyed to a member of the Vigilance Committee that a box might be expected by the three o'clock morning train from the South, which might contain a man. 

All was quiet. The door had been safely locked. The proceedings commenced. Mr. [J.M.] McKim rapped quietly on the lid of the box and called out, "All right!" Instantly came the answer from within, "All right, sir!" 

The witnesses will never forget that moment, Saw and hatchet quickly had the five hickory hoops cut and the lid off, and the marvelous resurrection of Brown ensued. Rising up in the box, he reached out his hand, saying, "How do you do, gentlemen?" the little assemblage hardly knew what to think or do at the moment. He was about as wet as if he had come up out of the Delaware. Very soon he remarked that, before leaving Richmond he had selected for his arrival hymn (if he lived) the Psalm beginning with these words: "I awaited patiently for the Lord, and He heard my prayer." And most touchingly did he sing the psalm, much to his own relief, as well as to the delight of his small audience.

Source: William Still, Underground Railroad Records (Philadelphia, 1872).