This pamphlet denounces Britain's failure to enforce its European treaties against the slave trade (particularly the trade to Brazil), and the increased suffering and mortality that this has caused among cargoes of enslaved Africans. The author argues that Britain should either take far more effective measures to end the hugely damaging illegal trade, or stop interfering with it. Among the measures suggested are the concentration of resources on the West African coast, the purchase of new colonies there, and treaties strengthening ties with African rulers - influenced by Fowell Buxton's The African slave trade and its remedy, which was initially published in 1839.