Moritaro Yamada's "Nihon Shihonshugi Bunseki (Analysis of Japanese Capitalism)" (1934), hereafter "Bunseki," is a classic that has had an great impact on Japan's social science since the 1930s. It is difficult to understand the author's true intent, however, because he used obscure language, in order to avoid censorship by the authoritarian government. The book is principally composed of three volumes that were originally part of "Nihon Shihonshugi Hattatsushi Koza (Lectures on the Development of Japanese Capitalism)" (1932-1933), hereafter "Koza." We are now able to compare the "Bunseki" and "Koza" manuscripts because they were recently donated to the Institute of Social Science at the University of Tokyo. The other Moritaro Yamada's collections are at the Archive for the Faculty of Economics at the University of Tokyo, the Institute of Social Science at Senshu University and the Library of Ryukoku University, with both of which Yamada was affiliated. It is important to compare the various manuscripts of "Bunseki" and "Koza", and particularly the "Koza" manuscripts with the published version, in order to establish an evidentiary basis for the retrospective examination of Yamada's theory and analysis. This article collates the differences between the manuscript and published versions of "Koza" where they are most divergent in content, as shown in Table 1 and 2. These Tables enable us to understand the author's intention regarding a substantial portion of the complicated terminology used in "Koza" and "Bunseki." Some results of collation are as follows. First, the original title of "Bunseki" was "Nihon Shihonshugi (tokuni Kogyo) Bunseki (Analysis of Japanese Capitalism [Especially Industry])." Secondly, the third section, 'Kitei (The Basis),' which has received particular recognition, was initially titled 'Yohen (Appendix)'. Thridly, in 'Jogen (Introduction),' which compared the characteristics of Japanese capitalism with that of other countries, the author defined by 'revolution' and 'capitalism' at the beginning, and then went on to clarify by 'absolutism' and 'land ownership.' Lastly, the author changed his wording, especially in relation to 'Military', 'Police', 'Imperial Court', and 'Labor Struggle', to other unique complicated terminologies.