[Footnote 11: U.B. Phillips, History of Transportation in the Eastern
Cotton Belt to 1860
(New York, 1908), pp. 46-55.]

At the time of the federal census of 1790 there were in the main group of upland counties of South Carolina, comprised then in the two "districts" of Camden and Ninety-six, a total of 91,704 white inhabitants, divided into 15,652 families. Of these 3787 held slaves to the number of 19,934—an average of 5-1/4 slaves in each holding. No more than five of these parcels comprised as many as one hundred slaves each, and only 156 masters, about four per cent, of the whole, had as many as twenty each. These larger holdings, along with the 335 other parcels ranging from ten to nineteen slaves each, were of course grouped mainly in the river counties in the lower part of the Piedmont, while the smallest holdings were scattered far and wide. That is to say, there was already discoverable a tendency toward a plantation régime in the localities most accessible to market, while among the farmers about one in four had one or more slaves to aid in the family's work. The Georgia Piedmont, for which the returns of the early censuses have been lost, probably had a somewhat smaller proportion of slaves by reason of its closer proximity to the Indian frontier.

A sprinkling of slaves was enough to whet the community's appetite for opportunities to employ them with effect and to buy more slaves with the proceeds. It is said that in 1792 some two or three million pounds of short-staple cotton was gathered in the Piedmont,[12] perhaps in anticipation of a practicable gin, and that the state of Georgia had appointed a commission to promote the desired invention.[13] It is certain that many of the citizens were discussing the problem when in the spring of 1793 young Eli Whitney, after graduating at Yale College, left his home in Massachusetts intending to teach school in the South. While making a visit at the home of General Greene's widow, near Savannah, he listened to a conversation on the subject by visitors from upland Georgia, and he was urged by Phineas Miller, the manager of the Greene estate, to apply his Yankee ingenuity to the solution. When Miller offered to bear the expenses of the project, Whitney set to work, and within ten days made a model which met the essential requirements. This comprised a box with a slatted side against which a wooden cylinder studded with wire points was made to play. When seed cotton was fed into the box and the cylinder was revolved, the sharp wires passing between the slats would engage the lint and pull it through as they passed out in the further revolution of the cylinder. The seed, which were too large to pass through the grating, would stay within the hopper until virtually all the wool was torn off, whereupon they would fall through a crevice on the further side. The minor problem which now remained of freeing the cylinder's teeth from their congestion of lint found a solution in Mrs. Greene's stroke with a hearth-broom. Whitney, seizing the principle, equipped his machine with a second cylinder studded with brushes, set parallel to the first but revolving in an opposite direction and at a greater speed. This would sweep the teeth clean as fast as they emerged lint-laden from the hopper. Thus was the famous cotton-gin devised.[14]

[Footnote 12: Letter of Phineas Miller to the Comptroller of South
Carolina, in the American Historical Review, III, 115.]

[Footnote 13: M.B. Hammond, The Cotton Industry (New York, 1807), p. 23.]

[Footnote 14: Denison Olmstead, Memoir of Eli Whitney, Esq. (New Haven, 1846), reprinted in J.A. Turner, ed., Cotton Planter's Manual, pp. 297-320. M.B. Hammond, The Cotton Industry, pp. 25, 26.]

Miller, who now married Mrs. Greene, promptly entered into partnership with Whitney not only to manufacture gins but also to monopolize the business of operating them, charging one-third of the cotton as toll. They even ventured into the buying and selling of the staple on a large scale. Miller wrote Whitney in 1797, for example, that he was trying to raise money for the purchase of thirty or forty thousand pounds of seed cotton at the prevailing price of three cents, and was projecting a trade in the lint to far-off Tennessee.[15] By this time the partners had as many as thirty gins in operation at various points in Georgia; but misfortune had already begun to pursue them. Their shop on the Greene plantation had been forced by a mob even before their patent was procured in 1793, and Jesse Bull, Charles M. Lin and Edward Lyons, collaborating near Wrightsboro, soon put forth an improved gin in which saw-toothed iron discs replaced the wire points of the Whitney model.[16] Whitney had now returned to New Haven to establish a gin factory, and Miller wrote him in 1794 urging prompt shipments and saying: "The people of the country are running mad for them, and much can be said to justify their importunity. When the present crop is harvested there will be a real property of at least fifty thousand dollars lying useless unless we can enable the holders to bring it to market," But an epidemic prostrated Whitney's workmen that year, and a fire destroyed his factory in 1795. Meanwhile rival machines were appearing in the market, and Whitney and Miller were beginning their long involvement in lawsuits. Their overreaching policy of monopolizing the operation of their gins turned public sentiment against them and inclined the juries, particularly in Georgia, to decide in favor of their opponents. Not until 1807, when their patent was on the point of expiring did they procure a vindication in the Georgia courts. Meanwhile a grant of $50,000 from the legislature of South Carolina to extinguish the patent right in that state, and smaller grants from North Carolina and Tennessee did little more than counterbalance expenses.[17] A petition which Whitney presented to Congress in 1812 for a renewal of his expired patent was denied, and Whitney turned his talents to the manufacture of muskets.

[Footnote 15: American Historical Review. Ill, 104.]

[Footnote 16: J.A. Turner, ed., Cotton Planter's Manual, pp. 289, 290, 293-295.]

[Footnote 17: M.B. Hammond, "Correspondence of Eli Whitney relating to the Invention of the Cotton Gin," in the American Historical Review, III, 90-127.]