Regarding JH's forthcoming visit. On the platinum in the pound weight becoming browned.
Showing 81–100 of 140 items
Regarding JH's forthcoming visit. On the platinum in the pound weight becoming browned.
Expecting him soon. Experiments on the National pound.
Regarding the transit of Mercury. Error in calculating the pound weights.
Meeting of the Standards Commission on 16 March.
Meeting of the Standard Commission on 29 April.
Sending him the map of the world.
Sending him the draft of the Report of the Standards Committee for his signature.
Regarding the opposition to the proposed introduction of the French Metrical system.H
Daughter has returned from Switzerland.
No summary available.
Informing him that he has just heard of the death of Wilhelm Struve.
Is returning the Proceedings of the Manchester Society, and The Magnetical and Meteorological Observations for 1851-58. Regarding the registration of magnetical disturbances.
No summary available.
Concerning JH's memorial to W. R. Hamilton's daughter. Holiday in Keswick. Comments on JH's papers on optics and force.
Writes about a long standing, very old, member of the Royal Observatory's Board of Visitors [W. H. Smyth] having been summarily dismissed from the Board.
Explaining JH's polarization difficulty [see JH's 1865-10-16].
Printed address of the Astronomer Royal to individual members of the Board of Visitors of the Royal Observatory.
Further regarding polarized light and its interferences.
Regarding I. K. Brunel's bridges and JH's letter on suspension roofs. Effects of a thunderstorm on a water barometer.
No summary available.