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Babbage, Charles, 1792-1871

"On the Economy of Machinery and Manufactures"


Venetian gold chains
Price of a Venetian
Braccio, equal to
Weight of Number of links two feet 1/8 inch
No. one inch, in grains in one inch English
0.44 98 to 100 60 francs
1.56 92 40
1 1/2.77 88 26
2.99 84 20
3 1.46 72 20
4 1.61 64 21
5 2.09 64 23
6 2.61 60 24
7 3.36 56 27
8 3.65 56 29
9 3.72 56 32
10 5.35 50 34
24 9.71 32 60

Amongst these chains, that numbered 0 and that numbered 24
are exactly of the same price, although the quantity of gold in
the latter is twenty-two times as much as in the former. The
difficulty of making the smallest chain is so great, that the
women who make it cannot work above two hours at a time. As we
advance from the smaller chain, the proportionate value of the
work to the worth of the material becomes less and less, until at
the numbers 2 and 3, these two elements of cost balance each
other: after which, the difficulty of the work decreases, and the
value of the material increases.
213. The quantity of labour expended on these chains is,
however, incomparably less than that which is applied in some of
the manufactures of iron.


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