Eigenh. Brief mit U.
2 SS. auf Doppelblatt. 8vo.
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 [...]".