Reference numberMS/119/2/85
TitleLetter from Frederick Marow Eardley-Wilmot, Cape of Good Hope Observatory to Humphrey Lloyd, Trinity College, Dublin
Date20 September 1841
DescriptionEardley-Wilmot is sending Lloyd the observations of vibration of the vertical force in the vertical plane [not enclosed]. Suggestion to reject the first observation, it is only included to show the mistake made in copying out the value. Eardley-Wilmot asks for Lloyd’s method of proceeding in vibrating this magnet. The temperature experiment for the vertical force magnet appears indefinite. The apparent declination is affected by the size of the arc in which the magnet swings, and discussion on varied results. Eardley-Wilmot describes how he made a copper apparatus himself. Discussion on the horizontal force instrument. Eardley-Wilmot informs Lloyd that an officer from 'HMS Terror' was at the Cape of Good Hope a few days ago in the 'Cornwallis', on his way to China.
Physical descriptionInk on paper
Access statusOpen
Fellows associated with this archive
NA6061Eardley-Wilmot; Frederick Marow (1812 - 1877)1812 - 1877
NA8252Lloyd; Humphrey (1800 - 1881)1800 - 1881
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