Mr. Rosesaid, it was the duty of the house seriously to consider how the passing of such an act as this might affect the trade and manufactures of the country. On that very evening a message had been brought down from his majesty, with an account of acts of hostility practised against this country by Prussia, and he hoped there would be but one opinion in that house, and in the country, as to the course we ought to pursue on such an occasion. The house must be aware that the exclusion of our vessels from Prussian ports would materially affect the export of our manufactures, and on that account he did not wish to see any measure adopted which should serve to increase that evil. If the trade carried on to the coast of Africa was diminished, not only would the sale of British commodities be diminished, but the trade itself would be taken up by the Americans; and on the score of humanity, it was much better it should be carried on by this country, on account of the superior good treatment which slaves met with in British ships.—The bill was then committed.