Hillier, Walter Caine.
The Chinese language and how to learn it : a manual for beginners. (London : Kegan Paul, Trench, Trübner & Co., 1907-1909). [4th rev. ed. (Shanghai : Kelly & Walsh, 1927). 8th ed. Vol. 1-2. (London : Kegan Paul, Trench, Trübner, 1922-1929)].
https://archive.org/details/chineselanguageh00hilliala.
(Hill2)