During his working at the Chinese Customhouse over 30 years, he wrote a series of works on China, which had a profound effect on the Western Chinese historical works in the early 20 th century.

• 在中国海关任职长达30余年的时间里,撰写了一系列有关中国问题的著作,它们对20世纪前半期西方的中国历史学著作产生了深刻的影响。