[14] Robert Moore Duncan，Peiping Municipality and the Diplomatic Quarter，China，1933，pp.108-110.
[15] Robert Moore Duncan，Peiping Municipality and the Diplomatic Quarter，China，1933，p.111.
[16] Robert Moore Duncan，Peiping Municipality and the Diplomatic Quarter，China，1933，p.111.“The economical and efficient administration depends very largely upon the loyalty and tact of the Permanent Sectary.”
[17] 丁进军：《清末北京使馆洋界巡捕道路规章史料》，载《历史档案》，2010（3），32页。