抄録
According to the present investigation, it is found that Japanese "physical books" which discussed the essence of heat hnd disaffirmed the "material theory of heat" since 1872 (Meiji 5) and those books supporting the "kinetic theory of heat" had become predominant and been diffused rapidly.
Authors did not think so earlier. They expected that there were fairly a lot confusions between traditional thoughts in Japan or the "material theory of heat" and the "kinetic theory of heat". It is shown, however, as a result of the investigation that the shift from the "material theory of heat" to the "kinetic theory of heat" had proceeded smoothly and rapidly. In this context, authors cannot help being struck with wonder by the fact that the acceptance of European science in early years of Meij in Japan was done quite neatly as a "thorough imitaion".
