JL's source for his novel 'Star Rover'

4. Angus Hamilton
Korea. New York: C. Scribner's Sons, 1904.
mentioned Lady Om, Opert, Yi Yong-ik

5. The Korean Review
Sept 1902, p. 385: The Treasure of Kyong-ju
"From the archaeological standpoint, the city of Kyong-ju in southern Korea is probably the most interesting point in Korea. It is not so old as Pyang-yang but the .... The southern city and its environs are rich in historical remains but it is our purpose to speak here only of ..."

Sept 1902, pp. 384-385
There is a picture of the torture of a prisoner, titled "Torturing a wwitness". 다리 사이에 나무를 집어 넣고 주리를 트는 모습이다.