Regarding the printing of JH's British Metrical scale. Comparison between the chimes of Big Ben and those of St. Mary's, Cambridge.
Regarding the printing of JH's British Metrical scale. Comparison between the chimes of Big Ben and those of St. Mary's, Cambridge.
Further details on the chimes of Big Ben.
Thanking him for his paper on telescopes. Observations of JH's semicircular map of the world.
Offering sympathy on the death of JH's daughter [Margaret Louisa].
Is sending a tract on 'Probable Errors.' Further observations on JH's article on telescopes.
Asks for his comments on the results of his Magnetic Register 1848-1857.
Further remarks concerning his Magnetic Registers [see GA's 1861-4-22].
Regarding the evaporation of water as a source of electricity. Magnetic results in relation to the North Atlantic.
Encloses printed copies of letters received from Johann Lamont regarding apparatus for examining Galvanic currents in the earth; would like his comments on them. Gave lecture in Manchester on the eclipse.
Has received notice from the Foreign Office that the Russian Government has sanctioned the establishment of a magnetic and meteorological observatory at Pekin.
Concerning Thomas Maclear.
Giving results (including diagram) of a comparison of earth currents and magnetometer disturbances.
Regarding William Lassell's nebulae drawings in the R.A.S.'s Memoirs. House of Commons action concerning 'Weights and Measures.'
Has climbed Ben Nevis.
Concerning the 'Standards.'
Regarding A. R. Clarke's paper on Geodesy. Benjamin Peirce's Lunar Table. The sun's parallax. JH's nebulae catalogue. Regarding the English inch.
Regarding employment for GA's son in the Educational Departments in India.
Regarding the Proceedings of the Southern Telescope Committee.
Requesting JH to write to Thomas Maclear to get him to finish his work on the Trigonometrical Survey of the Cape.
Is returning correspondence on Southern Telescope Committee and the Melbourne telescope. Comments on the working of the scheme.