" This was brought to the notice of the United States
authorities, but the district attorney of Florida could furnish no
information.[69]
Such was the state of the slave-trade in 1850, on the threshold of the
critical decade which by a herculean effort was destined finally to
suppress it.
FOOTNOTES:
[1] Beer, _Geschichte des Welthandels im 19^{ten}
Jahrhundert_, II. 67.
[2] A list of these inventions most graphically illustrates
this advance:--
1738, John Jay, fly-shuttle.
John Wyatt, spinning by rollers.
1748, Lewis Paul, carding-machine.
1760, Robert Kay, drop-box.
1769, Richard Arkwright, water-frame and throstle.
James Watt, steam-engine.
1772, James Lees, improvements on carding-machine.
1775, Richard Arkwright, series of combinations.
1779, Samuel Compton, mule.
1785, Edmund Cartwright, power-loom.
1803-4, Radcliffe and Johnson, dressing-machine.
1817, Roberts, fly-frame.
1818, William Eaton, self-acting frame.
1825-30, Roberts, improvements on mule.
Cf. Baines, _History of the Cotton Manufacture_, pp. 116-231;
_Encyclopaedia Britannica_, 9th ed., article "Cotton."
[3] Baines, _History of the Cotton Manufacture_, p.
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