2014 年 79 巻 700 号 p. 1449-1457
The intention of this paper is to figure out the relationship between Frank Lloyd Wright's architectural thought and his design through an analysis of modification system of the Prairie Houses that represent his works in the First Golden Age. The analysis consists of two main chapters as follows: Chapter 2 overviews the modification of his Prairie Houses focusing attention on several 'types' of his works that originally propounded by the author based on previous studies' three diagrams. Chapter 3 explicates his view to the nature during this period and the concept of "conventionalization" which leads his early design through an analysis of his statements at the time.