He compares the effect of
steam with that of horses, in the following manner. Six horses, aided
with the most advantageous combination of the mechanical powers hitherto
tried, will grind six bushels of flour in an hour; at the end of which
time they are all in a foam, and must rest. They can work thus six hours
in the twenty-four, grinding thirty-six bushels of flour, which is
six to each horse, for the twenty-four hours. His steam-mill in London
consumes one hundred and twenty bushels of coal in twenty-four hours,
turns ten pair of stones, which grind eight bushels of flour an hour
each, which is nineteen hundred and twenty bushels in the twenty-four
hours. This makes a peck and a half of coal perform exactly as much as a
horse in one day can perform.
LETTER XXXIV.--TO COLONEL MONROE, December 18, 1786
TO COLONEL MONROE.
Paris, December 18, 1786.
Dear Sir,
Your letters of August the 19th and October the 12th have come duly to
hand. My last to you was of the 11th of August. Soon after that date I
got my right wrist dislocated, which has till now deprived me of the use
of that hand; and even now I can use it but slowly, and with pain.
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