My reflections here on the better use which might be made of Africa by the substitution of another trade, and on the better use which might be made of her inhabitants, served greatly to animate and to sustain me amidst the labour of my pursuits.
The next vessel I boarded was the Fly, Captain Colley.

Here I found myself for the first time on the deck of a slave-vessel.

The sight of the rooms below and of the gratings above, and of the barricado across the deck, and the explanation of the uses of all these, filled me both with melancholy and horror.

I found soon afterwards a fire of indignation kindling within me.

I had now scarce patience to talk with those on board.