Hill, John Spencer.
The Indo-Chinese Opium Trade in relation to its history, morality, and expediency : being the essay which obtained the Maitland prize of the University [of Cambridge] for 1882. With a prefatory note by Lord Justice Fry. (London : H. Frowde, 1884).
https://archive.org/details/indochineseopiu01hillgoog.
(HillJ1)