Hopes [Humphrey] Lloyd will reconsider V.F. Magnetometer based on JH's remarks. Discusses Canadian observatories. States who will perform U. S. magnetic survey. Discusses micrometer use.
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Hopes [Humphrey] Lloyd will reconsider V.F. Magnetometer based on JH's remarks. Discusses Canadian observatories. States who will perform U. S. magnetic survey. Discusses micrometer use.
Discusses Charles Riddell's desire to serve at a North American observatory and the expenses involved.
Suggests a book of expenses be kept at the R.S.L.
Discusses plans for a U.S. magnetic observatory and of [Karl] Kreil's paper about predicting earthquakes. Discusses the affairs of other observatories.
Has received materials from [A. D.] Bache indicating that the U.S. government has proposed to establish 5 magnetic observatories.
Writes of a magnetic survey of a portion of India and the inaccuracy of the equipment used in magnetic observations at sea.