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XIV. Account of the Means employed to obtain an overflow- 
ing JVell. In a Letter to the Right Honourable Sir Joseph 
Banks, Bart. K. B. P. R. S. from Mr. Benjamin Vulliamy. 
Read May 25, 1797. 
SIR, 
Permit me, in compliance with your request, to give you a 
short account of the well at Norland House, belonging to Mr, 
L. Vulliamy; a work of great labour and expence, executed 
entirely under my direction, and finished in November, 1794. 
Before I began the work, I considered that it would be of 
infinite advantage, should a spring be found strong enough to 
rise over the surface of the well ; and though I thought it very 
improbable, yet I resolved to take from the beginning the same 
precautions in doing the work, as if I had been assured that 
such a spring would be found. But although this very labo- 
rious undertaking has succeeded beyond my expectation, yet 
from the knowledge I have acquired in the progress of the 
work, I am of opinion that it will very seldom happen that the 
water will rise so high; nor -will people, I believe, in general, 
be so indefatigable as I have been in overcoming the various 
difficulties that did and ever will occur, in bringing such a 
work to perfection. 
In beginning to sink this well, which has a diameter of four 
feet, the land springs were stopped out in the usual manner, 
and the well was sunk and steined to the bottom. When the 
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