And here I ought to commence with stating, as a grand and universally operative cause why the numbers of the Slaves did not increase more rapidly, that their increase was not made in general a primary object of attention. Here also there were individual instances of a contrary sort, but still the position is generally true. The dependance for keeping up the stock of Slaves was placed not on the increase to be obtained by births, but on the power of purchasing from time to time from the Slave market. This was abundantly proved by positive evidence; nay, even by the express declaration of the managers and overseers themselves; but it was established perhaps still more decisively, by its being almost invariably found that the most intelligent West Indians, who were the most fully acquainted with every other particular of the system, were commonly utterly ignorant of all that related to this important topic. On this head, their minds were a mere blank, wholly unfurnished with any of those particulars with which they must have been familiar, had the increase of their Negroes been any great object of their care. Even medical men, though perfect adepts in all which regarded planting, appeared quite at a loss, when questions were asked of them connected with the breeding and rearing of children. In some instances, even the colonial statutes have been framed on the same principles, and an annual poll-tax has been laid on Negro Slaves from their earliest infancy. It is not however, that I impute even to the managers, much less to the proprietors of West Indian estates, that they entered into any grave and minute comparison between the breeding system on the one hand, and the working down and buying system on the other, and that they deliberately gave the preference to the latter as the most economical, in the full view of all its horrid consequences; but the truth is, that under all the circumstances of the West Indian colonies, it was perfectly natural that the buying rather than the breeding system should be pursued; nay, reasoning from experience, I had almost said, it was scarcely possible that the case should be otherwise, for it was a mode of proceeding which resulted from causes of sure and universal operation. Mr. Hume has clearly proved the truth of this position, in his celebrated Essay on the populousness of ancient nations; and he himself, after stating why the buying system had been preferred among the ancients, applies the reasoning to our Trans-Atlantic colonies, and speaks of the confirmation which his doctrine receives, from the maxims of our planters, as a known and acknowledged fact.[21] From the operation of similar causes, buying rather than breeding Slaves became the general policy, among the nations of antiquity; and hence it will infallibly continue the general policy in the West Indies, so long as a Slave market remains open for a purchaser’s supply.