Consults JH before responding to Wilhelm Weber's proposal for publication of observations. ES proposes to publish German data with data from Toronto, St. Helena, the Cape, and Van Diemen's Land. The Physical Committee of the R.S.L. suggests strengthening Adolphe Quetelet's application to the Belgian government for magnetic observations. The Hammerfest [Norway] magnetic curve does not harmonize with European ones.

Has JH any special instructions for [Louis] Agassiz's actinometers? Has sent Wilhelm Weber recent data for Toronto and St. Helena observatories while requesting Göttingen lunar observations. Discusses publication of the German Magnetic Association. Seeks advice on the inclusion of a translation of JH's paper on photometric apparatus. Has left at the R.S.L. a copy of C. F. Gauss's and Weber's magnetic atlas.

Has received papers from Colonel Sykes. Describes (and includes a portion of) Lieutenant [Henry] Yule's report on broken instruments, which have prevented operations at Aden [?]. Suggests appointing a director there. Notes safe arrival of instruments at Toronto.

Encloses letter to JH on magnetic survey in Canada and two letters from Leipzig, as well as proposals for reforms in B.A.A.S. Hopes to meet JH at the upcoming anniversary of the R.S.L.