The artitectural materials on the structure of the windows and the doors and the stonework of the part of the KAITAKUSHI at Tokyo completed in the early years of the eighteen-eighties are introduced and then discussed. Main matters studied here as follows; (i) the fact that there was the critique that the designs of the details of this building were not fit for the Japanese climatic environment which were often visited by a heavy rain and a gale. (ii) the supply condition of stone at Tokyo in the construction time.