Astronom (1800-1870). 2 eigenh. Briefe mit U. London. Zusammen (2½+2 =) 4½ SS. auf 4 Bll.
$ 267 / 250 €
(60888/BN44738)
An den Astronomen Wilhelm Förster: "[...] Directions have been given to complete the set of our Publication for the Berlin Observatory, and the missing Volumes, mentioned in your letter, have already been despatched to Berlin [...]" (7. V. 1866). - I have the pleasure to inform you that I have despatched your Diplom as an Associate of the Royal Astronomical Society to you through the Prussian Embassy in London, and I trust that it will reach you safely. It would have been sent earlier but I could not readily find a sure mode of getting it conveyed to you [...]" (4. VII. 1866).
Astronom (1800-1870). Eigenh. Brief mit U. London. 30.11.1865. 2 SS. auf Doppelblatt. 8vo.
$ 160 / 150 €
(60889/BN44739)
An den Astronomen Hermann Romberg vom Berliner Observatorium: "[...] We have looked over our collection of the Publications of your Observatory and find it complete, so that we have at present no occasion to profit by Prof. Foe[r]sters kind offer of sending us any volumes which we were in want of [...]".