Comments on EH's 'Magic pictures', which JH said he produced and described in a paper twenty-six years earlier; JH is however unable to explain the process chemically.

No summary available.

Quotes from an 1840 publication by JH to show JH's priority over a recent request for a patent for 'Magic pictures.' Recounts some recent photographic experiments by JH on the action of light on platinum.

Comments on new star reported by WH [see WH's 1866-5-18]; includes diagram of that portion of the sky.

Comments on Charles Rümker's observations and agrees to a meeting [see John Wrottesley's 1866-5-12].

Mostly about arranging a meeting with both JW and G. B. Airy at the Greenwich Visitation.

Responds to meeting arrangements [see GA's 1866-5-24].

Not well enough to attend Visitation Day at the Royal Observatory, but would be pleased if GA would invite JH's son John.

Thanks for note [see JT's 1866-5-26] on improvement of the lecturing style of JH's son [Alexander]. JH's son has studied lecture's subject deeply and loves science; JH hopes will be physics professor at a 'considerable institution.'

Reports JH's 1842 observation of a star near Epsilon Coronae, which may be tne new variable star [T Coronae].

Thanks JC for his papers on 'ice-cap and eccentricities [of planets].' Comments on the papers, noting the interactions between geology and astronomy.

Writes a very kind letter, encouraging JS to remember the good days when JS and JH worked together in astronomy, and to forget less happy events. [This letter was enclosed in JH's 1865-5-31 to John F. South.]

As JH rarely comes to London. and is himself in poor health, it is unlikely that JH can visit James South. JH wants, however, also to wipe bitter recollections from his mind.