Asks the Physical Committee (Chair, JH) of the R.S.L. to note the concurrent disturbances of magnetometers and the appearance of aurora borealis, and to make a long term study of this relationship.
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Asks the Physical Committee (Chair, JH) of the R.S.L. to note the concurrent disturbances of magnetometers and the appearance of aurora borealis, and to make a long term study of this relationship.
Points out an error in the instructions for magnetic observers provided for the Antarctic expedition.
Outlines suggestions from [Drinkwater-]Bethune for improving 'Report of Standards.' Bethune distinguished Exchequer, Local, and Parliamentary (or National) standards, and preserved unit called 'land chain' equal to twenty yards.
A notice of meeting of the Standards Commission.
A notice of meeting of the Standards Commission.
A note to accompany a draft of the report of the Standards Commission.
A notice of meeting of the Standards Commission.
Asks JH to put in writing proposals JH had made at a Standards Commission meeting, especially those relating to nomenclature [see GA's 1841-2-8].
A note to accompany additions, comments, and emendations relating to the report of the Standards Commission.
Seeks clarification from JH about a number of matters in the draft report of the Standards Commission [see JH's 1841-5-12 or earlier].
A summons to a meeting of the Standards Commission, together with some proposals for amending the report.
A note to accompany a number of papers on the 'toleration of inaccuracy,' a question of concern to JH in relation to the setting up of standards.
A letter accompanying a proof copy of the Report on Standards, asking JH to read it carefully and annotate as completely as necessary.
Asks for JH's comments on George Peacock's assessment that the Report of the Standards Commission [see GA's 1841-7-27] is directed too much to scientific men, and others will not understand it; suggests an appendix to show the relationship between the proposed measures.
A letter accompanying a 'fair copy' of the Report of the Standards Commission; GA indicates he has incorporated the views of all members of the Commission.
Sending two copies of the 'Extracts relating to Standards.' Remarks on these extracts. Requests JH to fix a date for a meeting to discuss the report.
Sending draft of report and appendix. Specimen of a gauging scale.
Informing JH of a meeting of the Commission on Standards at Somerset House on 28 May 1841.
Regarding JH's examination of the observations of equinoxes and solstices; GA assures him that these occurrences are observed by Cambridge and Greenwich, though JH does not mention it. Hopes he has received the report of the last 'Standards' meeting.
Returning photographs. Hopes Lady Herschel is well. Remarks on Admiralty printing Planetary reductions.