The lands there might be cultivated by fewer hands, and this to greater advantage to the proprietors and to this country, by the produce of cinnamon, coffee, and cotton, than by that of sugar.

The produce of the plantations might also be considerably increased, even in the case of sugar, with less hands than were at present employed, if the owners of them would but introduce machines of husbandry.

Mr.Long himself, long resident as a planter, had proved, upon his own estate, that the plough, though so little used in the West Indies, did the service of a hundred slaves, and caused the same ground to produce three hogsheads of sugar, which, when cultivated by slaves, would only produce two.

The division of work, which, in free and civilized countries, was the grand source of wealth, and the reduction of the number of domestic servants, of whom not less than from twenty to forty were kept in ordinary families, afforded other resources for this purpose.
But, granting that all these suppositions should be unfounded, and that every one of these substitutes should fail for a time, the planters would be indemnified, as is the case in all transactions of commerce, by the increased price of their produce in the British market.

Thus, by contending against the abolition, they were defeated in every part of the argument.
But he would never give up the point, that the number of the slaves could be kept up by natural population, and without any dependence whatever on the Slave-trade.