33 
NOTES AND COMMENTS. 
THE LINCOLN BORING. 
AT a recent meeting of the Geological Society of London, Prof. 
E. Hull read a paper on the boring for water at Lincoln, of 
which an account has already appeared in these columns.* In 
the discussion which followed, Mr. Percy Griffith described the 
boring as the deepest and longest extant, and the difficulties 
met with as of an altogether unusual character. The loss of 
the boring-tool, for instance, involved a delay of sixteen months 
for its recovery. The corporation of Lincoln then authorised 
the continuation of a 9-foot shaft to a depth of 1500 feet from 
the surface at their own expense. A pilot boring, 3 inches in 
diameter, was then driven from the bottom of the well, and at 
a depth of 1561 feet, water was met with which resisted all 
efforts to prevent it from rising into the well. The concrete 
well-bottom was, however, put in successfully, having a guide 
pipe fixed in it to allow of the boring being continued through 
it. The boring was then resumed of a diameter of 32 inches, 
and, on the depth of 1561 feet being reached, the water rushed 
into the well, and in thirty-six hours overflowed at the surface. 
As the boring was continued to a lower level, the surface-flow 
increased until it reached a maximum of 180,000 gallons per 
day (24 hours). An enormous quantity of fine sand was blown 
into the well by the first rush of water, and some time was lost 
in removing this before boring could be resumed. The 32-inch 
boring was carried to a depth of 2015 feet from the surface ; 
and steel tubes, of 30 inches internal diameter, were lowered 
into the boring to a depth of 1600 feet from the surface, or 
about 4o feet into the sandstone. The work was commenced 
in August 1901, and had therefore been five years and four 
months in progress. The cost to date was about 420,000. 
Pumping was now going on, and so far had proved the yield 
of the well as being about 750,000 gallons per 24 hours, at a 
depth of 200 feet. 
EDUCATIONAL MUSEUMS 
In No. 8 of the Museum Gazette, which is published at the 
Hazelmere Educational Museum, an editorial note appears, 
without warning and apparently without incentive, as under :— 
‘We differ fofo celv from those who hold that museums in 
* ‘The Artesian Boring for the Supply of the City of Lincoln from the 
New Red Sandstone,’ by Prof. E. Hull. ‘Nat.,’ Sept. 1906, pp. 338-339. 
1907 February 1. 
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