Is sending a 'Memoir' [on Francis Baily?] to WW. JH and wife but not daughter Caroline will be at Trinity Lodge in June. Comments on a paper by William Hopkins on glaciers.]

On behalf of Lady Herschel, JH thanks WW for the copy of WW's book [Indications of the Creator]. Chides WW for having written an elementary work.

Invites Whewells to visit for a luncheon. Thanks WW for and comments on WW's publications on glaciers. Comments on Richard Jones.

Informs WW when JH and wife will arrive at Trinity Lodge for B.A.A.S. meeting, before which JH proposes a meeting of the magnetic committee.

Urges WW either to be present for a meeting in preparation for the Magnetic Congress or to send written recommendations.

Because of the 'severe loss' recently suffered by Mrs. Whewell, Margaret Herschel will not stay at Trinity Lodge during the B.A.A.S. meeting. JH plans to go to Ely after the meeting.

Working on double star orbits. Responds to WW's question [see WW's 1845-8-20] about proper mathematical education at Cambridge, for the most part agreeing with WW's preference for classical works.

Letter of introduction to WW for the son of Sir Jeremiah Bryant, then entering Trinity College.

Thanks WW for his book [Of a Liberal Education, 1845]. Agrees with WW on the educational value of the calculus and on the importance of Isaac Newton's Principia. Is teaching mechanics to his son William.

Is sending to Auguste Comte JH's Athenaeum comments on Comte. Asks JM not to mention that JH sent them to JM. Does not wish to offend Comte.

Mostly about family activity while MH is away; comments on the review by Adam Sedgwick of [Robert Chambers's] Vestiges of a Natural History of Creation in the Edinburgh Review in which the author receives 'a reasonable currycombing.'

At the B.A.A.S. meeting, JH spoke and was thanked by the most eloquent speaker he has ever heard, an American minister by the name of Everett. Everett is 'worthy of a much better country.' JH has also been busy in the magnetic committee.

Has arrived safely in Cambridge, and explains arrangements for MH to come some days later.

The meetings of the B.A.A.S. council have gone well so far; JH sends more details on travel arrangements for MH [see JH's 1845-6-17].

The weather is great in Cambridge for B.A.A.S. meeting; JH was at a small dinner party given by William Whewell, where the talk was mostly of architecture. JH refers to a battle in the Section A meetings between David Brewster and G. B. Airy.

The B.A.A.S. meetings are continuing, and JH has had an opportunity to talk to Charles Pritchard, who feels that their son William is doing very well at Pritchard's school; more about MH's travel arrangements [see JH's 1845-6-18].

Writes at the end of a very busy day of meetings, which was capped by a meeting in the Senate House, where Roderick Murchison spoke very eloquently, and Samuel Wilberforce thanked him even more eloquently, supporting the findings of geology in so doing. In the last part of the letter marked 'Private', JH expresses concern about the conduct of 'W. W.' [William Whewell?].

There has been a great disagreement between W. W.[William Whewell?] and S.[Adam Sedgwick?]. JH, together with others, has been instrumental in bringing the two back together again, at least for the time being.

Comments about engaging a gardener, concerns about Peter Stewart, and waiting for council and committee meetings [of the R.S.L.?]. The Physical Committee meeting was deferred because of a transit of Mercury.

Comments on MF's experimental results when an electromagnetic field affects polarized light.