Regrets that he cannot attend B.A.A.S. meeting and stay with HL; thanks HL for his paper on the undulating theory.
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Regrets that he cannot attend B.A.A.S. meeting and stay with HL; thanks HL for his paper on the undulating theory.
Begs not to be chairman of the proposed Magnetic Conference Committee [see HL's 1857-10-19], but would serve on the committee.
Sends procedures for preparation of the report of the Magnetic Committee for the meeting of the B.A.A.S., which JH cannot attend due to illness; asks some questions about achromatic lens theory.
Thanks HL for the response to JH's queries [see JH's 1859-9-4].
R.S.L. committee for considering continuance of magnetic observations has recommended that hourly observations be carried out at Falkland Islands, Newfoundland, and Vancouver Island. Alternate stations are Ceylon and Bermuda. Will not print all observations. Hopes colonial governments will participate. JH and William Whewell will be at [B.A.A.S. meeting in] Leeds.
R.S.L. committee recommends continuing three magnetic observatories at Falkland Islands, Newfoundland, and Vancouver Island.
Before he sends the 'Instructions' to the press would like to know if there is any objection to the use that he has made of JH's Admiralty Manual.
At the last meeting of the B.A.A.S. a resolution was adopted calling for the continuance of the Magnetical Observations. Would work through the joint R.S.L. and R.A.S. committees as before. Would JH agree to continue as chairman? Let him know at the Athenaeum where he returns in a few days.
Calls attention to vol. 3 of Toronto observations, where Edward Sabine, [T. R.] Robinson, and HL expressed their views on continuing magnetic observations. Emphasizes importance of discovering physical and mathematical laws that govern magnetic phenomena. Sufficient data already exist for this. Recommends continuing hourly observations for five more years at seven foreign observatories (listed). [JH note: Routing slip to B.A.A.S. committee, instructing each member to read and forward HL's recommendations.]
Forwarded JH's letter of 8 Aug. 1858 to members of magnetic committee, who will respond before B.A.A.S. meeting in Leeds next month. Asks that both committees meet jointly on first day. Edward Sabine is willing to superintend new series of observations proposed by JH.