Abstract
Among the eight French missionaries who stayed in the Kingdom of Ryukyus in the middle of the nineteenth century, Louis Théodore Furet passed 6 years 3 months of the longest time. Although the circumstances of the time did not allow the missionaries to pursue their real mission, they worked hard to learn languages to prepare for their future mission in Japan. In addition to it, Father Furet had activities in various academic fields. This article aims to overview, firstly, Furet’s academic documents in the meteorology, the seismology, the ethnography, etc. On the other hand, Furet’s letters will also help to clarify his strategy to keep a good relationship with the Ryukyuan authority.
