Discusses difficulties with establishing public magnetical and meteorological observatory. Mentions other business.
Discusses difficulties with establishing public magnetical and meteorological observatory. Mentions other business.
No summary available.
No summary available.
If JH wishes, will continue barometric [?] observations at Royal Society Apartments, which observations JH had requested while at Cape.
[Charles] Riddell's observations suggest Europe and North America experience magnetic disturbances at similar times, but in opposite directions. Suggests course of action for [Charles] Riddell and Lieutenant Younghusband in North America.
Praises various photographs by WT and notes changes in some. Recounts optical experiments, recent and planned, by JH on rock-salt.
Payment for instruments sent to Breslau observatory. Received proofs of JH's paper, which does justice to Humphrey Lloyd. Spoke to Lord Melbourne about establishing a magnetical and meteorological observatory in vicinity of London. Compares expenses for permanent and temporary observatories.
No summary available.
Has talked to William Lamb (Lord Melbourne) about permanent magnetic and meteorological observatory. Was received 'as well as we could have anticipated,' but without definite answer. Thinks head for observatory should be appointed and give lectures.
Announces 30 June meeting of Committee of Physics including Meteorology.
Committee will meet next Monday to appoint 'a Master and Mistress.'
No summary available.
No summary available.
Announces meeting of R.S.L. Council on Saturday 27 June. [JH annotation: Received on '27th June!']
No summary available.
Sends to HL a sheet of curves laid down by [Charles] Riddell, comparing Brussels declination observations with those made in Toronto. JH frequently refers to HL's work on the subject of terrestrial magnetism.
No summary available.
Has received JH's letter with the sheet of curves laid down by [Charles] Riddell. Comments on these. Is honored by the notice JH has taken of his share in the magnetic project. Encloses note on the wet bulb [thermometer].
Thanks AD for a correction in one of JH's writings; tries to explain the partial echo that occurs when blowing across the end of an open pipe.
Believes that R.S.L.'s request for £3000 grant to establish permanent magnetic and meteorological observatory is too hasty. Urges caution. Points out potential problems.