A German Interior in Berlin. A German Party. Joachim. Tausig's Conservatory. BERLIN, November 3, 1869. Behold me at last at No. 26 Bernburger Strasse where I arrived exactly two weeks from the day I left New York. Frau W. and her daughter, Fr ulein A. W., greeted me with the greatest warmth and cordiality, and made me feel at home immediately. The German idea of a "large" room I find is rather peculiar, for this one is not more than ten or eleven feet square, and has one corner of it snipped off, so that the room is an irregular shape. When I first entered it I thought I could not stay in it, it seemed so small, but when I came to examine it, so ingeniously is every inch of space made the most of, that I have come to the conclusion that it will be very comfortable.