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Comments on the sun spots he has been observing, and some new phenomenon. Any chance of a visit from JH?
On the observation of sun spots.
Expresses thanks for the writings JH has sent him; asks for other writings by JH.
A note to say that MH is returning JH's dress coat by train.
Received report by Lord Monteagle [Thomas Spring-Rice] on Standard Platinum Pound. Agrees to participate with members of 1853 Standards Committee in reexamining standards.
[Printed notice] Next meeting of Literary and Philosophical Society will be 26 Jan.
Encloses copy of JH's essay entitled The Yard, the Pendulum, & the Metre... (1863). Speculates on causes for deviation in pendulum measurements. Recommends using torsion gravimeters in 'proposed operation.'
If enclosed item is accepted for publication in Photographic News, JH wants to inspect its press, especially 'as respects the Cipher,' and to receive 25 copies.
Treasury Commissioners ask that surviving members of 1853 Standards Committee reexamine Parliamentary standards of length and measure preserved at office of Exchequer.
Replies to opinions of astronomers [regarding moon's influence on weather]. Still waiting to hear from JH's son Alexander whether microscopists have searched for foraminifera in meteorites.
Note accompanying report on paper by G. B. Airy.
G. B. Airy's paper has been received at R.S.L.