Text Online
From:
George Biddell Airy
To:
Michael Faraday
Date:
27 May 1843
Source of text:
RGO 6/8, f.567
Summary:
No summary available.
Contributor:
Faraday Project
No summary available.
No summary available.
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Recommends buying optics for 7.5-inch telescope from Metz and Mahlers in Munich and having those mounted in London.
Has received a request from the Admiralty to order a new telescope for the Cape observatory; at the same time, JH has received an unsolicited offer of a lens. JH seeks advice and information from GA.
Urges doubling number of lunar observations.
Tells GA about a new comet becoming visible.
Agenda items for next meeting of 'Committee for Superintending the Construction of Standards.' Compares English, French, Danish, and Prussian standards.
Gives formula for defining the measure of the scale of an actinometer.
A new committee on standards is to be created to oversee the preparation and measuring of appropriate standard measures; seeks JH's opinion about asking Francis Baily and W. H. Miller to do the accurate weighing and measuring.
A notice of meeting of the Standards Committee.
Provides JH with the measurements from a series of observations of Gamma Virginis.
Provides JH with information and advice about large lenses, which JH is considering for a Cape of Good Hope Observatory equatorial telescope.
Describes some available glass discs, which might do for making lenses for a large refracting telescope [see GA's 1843-8-30].
A notice of meeting of the Standards Committee, together with an indication of business to be conducted at that meeting.
Needs a good artisan to construct the framework of a solar spectrum photographic apparatus.
Would support improvements, both in number and quality, of lunar observations at the Royal Observatory; current practices produce unacceptably large predictive errors.
Changes the date of a Board of Visitors' meeting and urges JH to be there.