[Illustration:  PLAN OF SHANGTU From an Eye Sketch by Dr. S W Bushell 1872]

[Illustration:  Archway erected under the Mongol Dynasty at Kiu Yung Kwan, N.W. of Peking.[1]]

[1] On the walls of this archway is engraved the inscription in six
    characters, of which a representation accompanies ch. xv. of Prologue,
    note 1.