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After collecting and reducing all nebula observations by JH and William Herschel, JH objects to GA's suggestion that JH should pay for calculations needed to prepare catalogue of nebulae. Hesitates to request additional funds from R.S.L.
Acknowledges receipt of Royal Observatory's astronomical, meteorological, and magnetic observations for 1863.
Concerned about 'Commercial weight' of new standard of weights and measures.
JH responds with an assessment of the Indian observatories [see GA's 1866-9-24].