Thomas Maclear's assistant and equipment arranged. Observations on copper horse-shoe bars applied to the end of his magnet.
Showing 41–50 of 50 items
Thomas Maclear's assistant and equipment arranged. Observations on copper horse-shoe bars applied to the end of his magnet.
Knows nothing about Kew Observatory, but has heard of the name of the present office holder there.
Has sent to JH papers relating to London University. Hopes JH will accept a senatorship.
Has lost two sons with scarlet fever. Description of house at Playford, Sussex.
Regarding C. F. Gauss's magnetical observations. Domestic happenings.
George Everest-Thomas Jervis affair.
Concerning JH's experiments with photogenic light. Encloses paper of the comparisons between JH's and the Observatory's barometers. R.A.S. and R.S.L. want a subject for medals in astronomy, R.S.L. for a Copley medal in anything.
Double image micrometer has arrived; limitations and use of it. Wants list of stars for regular observations.
Sends suggestions for recipient of R.A.S. medal and comments on JH's 1839-11-29.
[Form Letter] Government committee appointed to replace standards of length and measure destroyed in Parliament fire. List of questions seeking recipients' opinion on subject.