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Babbage, Charles, 1792-1871

"On the Economy of Machinery and Manufactures"

The average price, during a long period, will
depend upon the labour required for producing and bringing it to
market, as well as upon the average supply and demand; but it
will also be influenced by the durability of the article
manufactured.
Many things in common use are substantially consumed in
using: a phosphorus match, articles of food, and a cigar, are
examples of this description. Some things after use become
inapplicable to their former purposes, as paper which has been
printed upon: but it is yet available for the cheesemonger or the
trunk-maker. Some articles, as pens, are quickly worn out by use;
and some are still valuable after a long continued wear. There
are others, few perhaps in number, which never wear out; the
harder precious stones, when well cut and polished, are of this
later class: the fashion of the gold or silver mounting in which
they are set may vary with the taste of the age, and such
ornaments are constantly exposed for sale as second-hand, but the
gems themselves, when removed from their supports, are never so
considered. A brilliant which has successively graced the necks
of a hundred beauties, or glittered for a century upon patrician
brows, is weighed by the diamond merchant in the same scale with
another which has just escaped from the wheel of the lapidary,
and will be purchased or sold by him at the same price per carat.


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