北京城大天壇皇上往祭掃
No. 918, THE ALTAR OF HEAVEN, PEKIN.
The Altar is circular and built in terraces like the base of the grand dome.
Near this Altar there is an immense furnace where is annually consumed a bullock, this offering is presided over by the Emperor in person who also performs other rites in connection with the worship of the “Supreme Ruler of the Imperial Heavens.”
