r--that is, on the 30th June--the Board of Longitude met,
when Harrison was present, and produced the chronometer with which he
had made the voyage to Lisbon and back. The minute states: "Mr. John
Harrison produced a new invented machine, in the nature of clockwork,
whereby he proposes to keep time at sea with more exactness than by any
other instrument or method hitherto contrived, in order to the
discovery of the longitude at sea; and proposes to make another machine
of smaller dimensions within the space of two years, whereby he will
endeavour to correct some defects which he hath found in that already
prepared, so as to render the same more perfect; which machine, when
completed, he is desirous of having tried in one of His Majesty's ships
that shall be bound to the West Indies; but at the same time
represented that he should not be able, by reason of his necessitous
circumstances, to go on and finish his said machine without assistance,
and requested that he may be furnished with the sum of 500L., to put
him in a capacity to perform the same, and to make a perfect experiment
thereof."
The result of the meeting was that 500L. was ordered to be paid to
Harrison, one moiety as soon as convenient, and the other when he has
produced a certificate from the captain of one of His Majesty's ships
that he has put the machine on board into the captain's possession.
Mr. George Graham, who was consulted, urged that the Commissioners
should grant Harrison at least 1000L., but they only awarded him half
the sum, and at first only a moiety of the amount voted. At the
recommendation of Lord Monson, who was present, Harrison accepted the
250L. as a help towards the heavy expenses which he had already
incurred, and was again about to incur, in perfecting the invention.
He was instructed to make his new chronometer of less dimensions, as
the one exhibited was cumbersome and heavy, and occupied too much space
on board.
He accordingly proceeded to make his second chronometer. It occupied a
space of only about half the size of the first. He introduced several
improvements. He lessened the number of the wheels, and thereby
diminished friction. But the general arrangement remained the same.
This second machine was finished in 1739. It was more simple in its
arrangement, and less cumbrous in its dimensions. It answered even
better than the first, and though it was not tried at sea its motions
were sufficiently exact for finding
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