Page:Transactions of the Geological Society, 1st series, vol. 4.djvu/111

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APPENDIX. No. 3.

Estimate for boring to the depth of one hundred fathoms in the counties of Roxburgh or Berwick, under the usual risks attendant on such operations; by Mr. Buddle in 1807.

Shillings £ s.
Boring 5 fathoms at 6 1 10
5 ditto 12 3 ──
5 ditto 18 4 10
5 ditto 24 6 ──
5 ditto 30 7 10
5 ditto 36 9 ──
5 ditto 42 10 10
5 ditto 48 12 ──
5 ditto 54 13 10
5 ditto 60 15 ──
5 ditto 66 16 10
5 ditto 72 18 ──
5 ditto 78 19 10
5 ditto 84 21 ──
5 ditto 90 22 10
5 ditto 96 24 ──
5 ditto 102 25 10
5 ditto 108 27 ──
5 ditto 114 28 10
5 ditto 120 10 ──
── ditto ──────────
100 315 ──
Carriage of the rods, tagle legs and gin blocks, rope and other apparatus, and fitting the same 100 ──
Sharpening the geer, finding grease, coals, a horse to draw the rods, and sundry other charges daring the boring 200 ──
Accidents in boring 345 ──
Extra expence in boring through Whin 145 ──
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£ 1100
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Estimates for boring to such great depths cannot in general be offered as accurate, from the stone to be perforated being in some cases so hard as hardly to be bored through at all, and from the great risk of breaking and losing the rods in the hole during the boring.