[Extract] Learned that JH was appointed by R.S.L. to committee to cooperate with B.A.A.S. to promote continuance of terrestrial magnetism survey. Asks ES to send committee summary of results already obtained and ES's opinion of how best to conduct future observations.

JH's improved health would allow him, if asked, to chair the Chemical Section at the B.A.A.S meeting. Notes that JH, G. B. Airy, William Whewell, and George Peacock have been appointed to a committee to cooperate with the B.A.A.S. committee dealing with the continuation of terrestrial magnetism observations.

Is glad to sign certificate. Complains about tendency of Alexander von Humboldt, whose volume Mrs. Sabine is translating, to ignore other scientists' work.