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Glad to hear that Margaret Louisa [JH's daughter] is coming to visit GA's family; could JH send along the key to the R.A.S. strong box?
Responds to GA's 1849-4-4, and sends the key.
Is making a case for JH's priority claims with regard to the means of determining double star orbits, in conflict with Yvon Villarceau.
A note about forwarding papers related to the double star question [see JH's 1849-4-9].
Extended comments about some of GA's statements in GA's abstract of Yvon Villarceau's papers on double stars [see GA's 1849-4-11].
Some responses to the question of copyright and of revision of articles prepared for the Encyclopaedia Metropolitana.
Returning papers of Yvon Villarceau and an abstract of them, together with comments on them.