The site selected for -the studies was Naguri-mura located in the northwest by west of Iruma gun-, Saitama prefecture.
This Village was surrounded by dismembered mountains, branches of the Buko, and had 59.5 km2 in area, and the above sealevel 249 m. A babbling brook, the Naguri streamed down the center of it, as turning. According to our investigation on April 1956, the number of housholds were 699, and the population 3421.
The weather was variably. The variably. The mean maximum, mean minimum and mean temperature of the year round was 19.1C, 7.2C and 12.4..
The region belonged in the rains in Saitama prefecture. As industry, the superior timbers of Japanese cedar and Japanese cypress were main producets, The quantities of this products a year were 100, 000 koku (Japanese).
The forest of this Village were occupied about 94 percent of its area. There was little ricefield.
Some of this Villagers was farmers, while many engaged in the forest work.