The underground railroad : [A record of facts, authentic narratives, letters, &c., narrating the hardships, hair-breadth escapes and death struggles of the slaves in their efforts for freedom, as related by themselves and others, or witnessed by the author; together with sketches of some of the largest stockholders, and most liberal aiders and advisers, of the road / By William Still ... Illustrated with 70 fine engravings by Bensell, Schell and others, and portraits from photographs from life ...].