Instructions for a journey to the sulphur deposits of the Valle de la Coipa.
Describes volcanic formations capping granite hills from Copiapò to Atacama [Chile]. [See South America, pp. 230–1.]
Has interpolated the hourly tidal observations for Simon's Bay.
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Describes in detail efforts, only partially successful, made by Thomas Maclear and JH to record tidal data at Simon's Bay and Table Bay. Gives some interpretation of the data.
Busy interpolating the Simon's Bay tidal series; JH then intends to study Table Bay and to compare the results. Asked William Whewell to back an application to the British Admiralty for a tide clock to be erected at Simon's Bay as a permanent tide station.
Will be obliged for the Tide Observations book of Table Bay. Intends to enter into an agreement with the Tide Master.
Asking how she should act to claim from him, as their Grandfather's executor, money due to her children, given his financial difficulties; particularly payment due for William's board and apothecary's bill, and Fanny's legacy.
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Hears that JH expressed to William Whewell great pleasure in parts of CL's book. Has been altered and improved since the 1st edition. When in Copenhagen last year [H. C.] Oersted was reading JH's paper on double stars. Murray has sold 1750 copies of CL's book.
Is in Berlin together with the astronomers J. F. Encke and F. W. Bessel. Relates their researches. The new Berlin Observatory is a magnificent affair. May have to travel home sooner than expected owing to the illness of his mother-in-law.
Sends TM some tide observations, and some calculations done on them.
Sends the Tide observations made in Table Bay. These are now at a standstill due to the expense involved. Tomorrow he intends to engage the Tide Master. Do they wind up with a dinner?
Visits F. W. Bessel in Berlin to discuss pendulum experiments. [C. A.] Steinheil invented a photometer to measure relative light of different stars.
Sends his 1834 observations. Has received JH's weather observing instructions. Likely to accept the post of Astronomer Royal when John Pond resigns. Further remarks on new telescope and of E. J. Cooper's (near Sligo) - planetary disks - errors of divisions of circles. Possibility of small observatory in Upper Canada.
Describes factors that led to C. P. Smyth's appointment to Cape. Uses rock crystal prism for double star observations. Continues observing JH's nebulae with equatorial clock. Approves of proposal for worldwide meteorological observations; will distribute brochures.
Passes on news from England and some Shrewsbury papers.
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Regarding meteorology. John Pond has resigned as Astronomer Royal and G. B. Airy been appointed in his place. Has finished his own account of John Flamsteed and sent it to the press. Is drawing up a report for the new standard scale.