抄録
As results of arranging the gravity values inserted before by Sassa and Iida, a few facts were ascertained:-
1. Bouguer anomalies are shown in table and Fig. 1.
2. Secular variations at four stations are shown in Fig. 2.
3. Tidal variation has been observed (see Fig. 3), and the value of G≡1-(3/2)k+h was determined.
