日本の古代の石器．車輪石と環石．この図版全図実寸の半分の大きさ．１．車輪石．やや長円形．全体に薄いが外側の縁の周辺より中央がより厚い．凸状の側に車輪の輻のような装飾．背は平ら．緑泥岩．２．図１と同種．大和葛城山．３．図１と同種．４．環石．筒の断面　．．．/(Ancient stone implements of Japan. Sharinseki or wheel-stones; Kwanseki or ring-stones, &c. one half natural size. 1. Sharinseki. Somewhat elliptical. Thin throughout, but thicker in the middle than around the outer rim. Spoke-like ornamentation on ...)