160 The East Anglian Earthquake.
The earthquake also caused a rise in the level of the water
in this well, and as systematic measurements of the level
have been taken weekly for some years past, it is possible to
represent the effect in a more precise form. The readings
are taken on Monday mornings (holidays excepted), and are
given in inches above the surface to which the water rises.
At the request of Mr. Sidney Courtauld, the following table
was kindly supplied by Mr. D. Radford Sharpe, of Braintree,
who takes these weekly measurements on behalf of the
Underground Water Committee of the British Association:—
These results show that the earthquake caused a rise of
19* inches, the rise increasing up to June 3rd, after which
the level was falling. Some later measurements forwarded to
me by Mr. Sharpe indicate that this increased level has, with