Recommends buying optics for 7.5-inch telescope from Metz and Mahlers in Munich and having those mounted in London.
Showing 1–8 of 8 items
Recommends buying optics for 7.5-inch telescope from Metz and Mahlers in Munich and having those mounted in London.
Both JH and his wife, Margaret, are very concerned about the health of Madame Gerlach, the aunt of NS. Details are provided.
Urges doubling number of lunar observations.
Construction of JH's new instrument for photographing spectral lines is still incomplete, and A. E. Becquerel has already announced discovery. JH will return £100 granted to JH by R.S.L.
Relinquishes R.S.L. Donation Fund for spectrometer [see JH's 1842-6-1], because [A. C.] Becquerel's research makes it obsolete.
Would support improvements, both in number and quality, of lunar observations at the Royal Observatory; current practices produce unacceptably large predictive errors.
Has to come to town for a Trustee meeting of the British Museum and wonders whether it would be convenient for him to visit Tavistock Place to consult him on various matters.
Sends Howard Elphinstone's barometer observations [at Ore, near Hastings].