This graphic image of the treatment of cargoes of slaves by British merchants was included in a work by the abolitionist Thomas Clarkson. St John's had strong links with this movement, which led to the out-lawing of slavery in British colonies in 1807, as both Clarkson and William Wilberforce, another leading abolitionist, were alumni of the College. Wilberforce's statue now graces the College chapel and the Library holds several volumes bearing the provenance of both Wilberforce and Clarkson.

From the library of John Carr, given by Henry Carr.