The purpose of this study is to analyze the brick industry of major prefectures in modern Japan by statistical data. Main results of this study are as follows.
1. The major prefectures of brick production were Osaka, Tokyo and Saitama in the Meiji and Taisho eras.
2. In these prefectures, the scale of factories was larger than national data, but productivity was not.
3. The ratio of large scale factories and spread of engines were higher than national data.
4. The working days of a year were depended on the production facilities. Large scale factories owned grinding and drying facilities; therefore they made it possible to operate throughout the year.
