Comments on the quality of the star catalogue of Charles Rümker [see John Wrottesley's 1866-4-16].
Comments on the quality of the star catalogue of Charles Rümker [see John Wrottesley's 1866-4-16].
Comments on William Whewell's replacement on the Royal Observatory's Board of Visitors.
Further regarding the possible introduction of the metrical system for weights and measures.
Regarding the measurement of the heat and light of the sun by means of the movements of a comet.
Regarding JH's remarks on Robert Willis. Comments on the usefulness of W. H. Miller of Cambridge.
Regarding the documents for the Standards Commission.
Inquires of GA as to the current status of parliamentary moves to introduce the metric system into Britain [see GA's 1864-9-28].
Has heard that the Indian government may adopt the metric system; wants to gather, and send to India, information against metrication; JH still wants to bring the earth's axis length into the measuring system.
Avails himself of GA's offer of assistance to obtain information [see GA's 1866-4-27].