抄録
In this paper, the abolishment of 4 waterworks (Aoyama, Se Dkawa, Mita and Honjo) at Edo in 1722 is chazussed by use of historical literatures on Kyoho Reformation, the disasters (fire, flood damage) occurred during 1590-1722 at Edo and the old maps related to the water supply districts. The abolishment of 3 waterworks (Aoyama, Senkawa and Mita) was carried out for the agricultural development at Musasino hill and in thes water supply districts people could get drinking water by the wells. The abolishment of waterworks (Honjo) was carried out for the reduction of the governmental mense.
