I joined several friends in erecting a granite obelisk to
his memory in the same churchyard. His family is extinct: but a
daughter of his brother is living, first married to T. Clarkson's son,
and now Mrs Dickinson, of the Rectory, Wolferton.
I am, my dear Sir,
Very faithfully yours,
G.B. AIRY.
_The Very Reverend,
The Dean of Ely._
1880
"The Admiralty, on final consideration of the estimates, decided not
to proceed with the erection of a new Library near the Magnetic
Observatory in the present year. In the mean time the space has been
cleared for the erection of a building 50 by 20 feet.--I have removed
the Electrometer Mast (a source of some expense and some danger), the
perfect success of Sir William Thomson's Electrometer rendering all
further apparatus for the same purpose unnecessary.--Many years ago a
double-image micrometer, in which the images were formed by the double
refraction of a sphere of quartz, was prepared by Mr Dollond for
Capt. Smyth, R.N. Adopting the same principle on a larger scale, I
have had constructed by Mr Hilger a micrometer with double refraction
of a sphere of Iceland spar. Marks have been prepared for examination
of the scale, but I have not yet had opportunity of trying it.
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