245. When it is stated that the tables thus computed occupy
seventeen large folio volumes, some idea may perhaps be formed of
the labour. From that part executed by the third class, which may
almost be termed mechanical, requiring the least knowledge and by
far the greatest exertions, the first class were entirely exempt.
Such labour can always be purchased at an easy rate. The duties
of the second class, although requiring considerable skill in
arithmetical operations, were yet in some measure relieved by the
higher interest naturally felt in those more difficult
operations. The exertions of the first class are not likely to
require, upon another occasion, so much skill and labour as they
did upon the first attempt to introduce such a method; but when
the completion of a calculating engine shall have produced a
substitute for the whole of the third section of computers, the
attention of analysts will naturally be directed to simplifying
its application, by a new discussion of the methods of converting
analytical formulae into numbers.
246. The proceeding of M. Prony, in this celebrated system of
calculation, much resembles that of a skilful person about to
construct a cotton or silk mill, or any similar establishment.
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