In his relatively short period of career from 1931 to 1950, Seok Joo-myung(石宙明, 1908-1950) made a significant achievement in the taxonomy of Korean butterflies. Examining the length of forewings and the numbers and positions of eye-spots, he tried to handle his specimens with statistical method. He was not aware of the burgeoning statistical methods in modern taxonomy. Yet, his success was largely due to his statistical sensitivity in his classificatory endeavors: He was able to correct the errors of many "splitters" through his numerous observational data statistically interpreted. Seok dubbed his research on the Korean butterflies as "the Korean(indigenous) biology". What he meant by "the Korean biology" was that his research on the butterflies should be considered a part of the classical, or traditional national studies, namely, Korean studies. His biology was not a mere natural science, but also a part of his effort to understand Korea including Korean culture and humanities. Some corroborating evidences revealing his tendencies in corporating science into general culture could be seen from his early interests in the international language and from his later studies on the dialect of the Chejoo island, as well as from his strenuous effort coining the indigenous names for the butterflies identified. In fact, there was a visible movement on the Korean national studies during the mid-1930s, and Seok was actively getting along with some major figures leading the movement. Indeed, the pursuit of "the Korean biology" was the expression of Seok's approach to understand Korea as a whole.