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Babbage, Charles, 1792-1871

"On the Economy of Machinery and Manufactures"

d. s. d.
Curry-combs, 8 barred dozen 5 51/2 1 5 74
patent, 6 barred dozen 7 11/2 1 5 80
8 barred dozen 8 63/4 1 10 79
Fire-irons, iron head, No. 1. 1 41/2 0 73/4 53
No. 2 1 6 0 81/2 53
No. 3 1 81/4 0 91/2 53
No. 4 1 101/2 0 101/2 53
Gun-locks, single roller each 7 21/2 1 11 73
Locks, 1 1/4 brass, port. pad 16 0 2 6 85
2 1/2 inch 3 keyed till-locks each 2 2 0 9 65
Shoe tacks gross 5 0 2 0 60
Spoons, tinned, iron table gross 22 6 7 0 69
Stirrups. com. tinned, 2 bar dozen 7 0 2 9 61
Trace-chains, iron cwt 46 91/2 15 0 68
Prices of the principal materials, used in mines in Cornwall, at
different periods [I am indebited to Mr John Taylor for this
interesting table]
ALL DELIVERED AT THE MINES
Description 1800 1810 1820 1830 1832
s. d. s. d. s. d. s. d. s. d.
Coals wey 81 7 85 5 53 4 51 0 40 0
Timber (balk) foot 2 0 4 0 1 5 1 0 0 10
(oak) foot 3 31/2 3 0 3 6 3 3
Ropes cwt 66 0 84 0 48 6 40 0 40 0
Iron (common bar) cwt 20 6 14 6 11 0 7 0 6 6
Common castings cwt 16 0 15 0 8 0 6 6
Pumps cwt 16s. & 17s. 17s. & 18s. 12s. & 15s. 6 6 6 10
Gunpowder 100 lbs. 114 2 117 6 68 0 52 6 49 0
Candles 9 3 10 0 8 9 5 11 4 10
Tallow cwt 72 0 84 0 65 8 52 6 43 0
Leather lb.


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