Has been asked to serve on a Standards Commission, to reestablish standards destroyed by the fire in the Houses of Parliament [1834]; is willing to serve.
Showing 41–60 of 563 items
Has been asked to serve on a Standards Commission, to reestablish standards destroyed by the fire in the Houses of Parliament [1834]; is willing to serve.
About JH's visit to Carl Friedrich Gauss, and Gauss's well-devised magnetic measuring instruments.
Asks a number of questions about a projected South Polar magnetic expedition.
No summary available.
Details about proposals for magnetic expeditions, as they are to be presented to British government [see GA's 1838-11-12]. Also included is a copy of the resolutions passed at a B.A.A.S. meeting on 25 Aug. 1828.
No summary available.
Comments on the work of the Standards Commission, hoping that it will move quickly to a conclusion [see GA's 1838-11-14].
Replies to GA's request for meeting dates [see GA's 1838-11-14], and suggests ways to shorten the work of the commission [see JH's 1838-11-16].
Agrees to GA's suggested dates [see GA's 1838-11-20]; comments on several approaches to defining a standard of weight.
Thanks GA for all his efforts on Thomas Maclear's behalf [see GA's 1839-2-25]; comments on some developments in photography, including the work of Nicephore Niepce done in approximately 1826.
No summary available.
About the question of an astronomer for a vacant position at Kew Observatory.
No summary available.
Sympathizes with GA in the family sorrow [deaths of GA's sons Arthur and George]; JH complains that house hunting, and other matters, are keeping him from important work.
George Everest-Thomas Jervis affair. Observations on the production of color by chemical rays.
About astronomical matters, such as parallax and variable stars.
Brief note supporting GA's medal recipient ideas [see GA's 1839-12-16], and adding some of JH's ideas.
Has a problem with the explanation of interference bands produced by mica being placed between the eye and prism-produced dispersion; the explanation is Baden Powell's.
Writes to supply GA with an address for a reply to JH's 1840-5-16.
Thanks GA for the time and trouble GA took in writing about interference bands [see GA's 1840-5-17]; JH's wife, Margaret, is making many visits to the dentist.