MEAN DENSITY OF THE EAETIT. 
395 
List of Determinations, in Chronological Order, of Mean Density of Earth by 
Methods Depending on Pendulum or Astronomical Observations. 
(The mines are indicated by negative depths.) 
Mountain or 
mine. 
Country. 
Elevation 
or depth 
of sta¬ 
tion. 
Observer. 
Date. 
Mean 
Density 
Earth. 
Schehallien... 
Scotland. 
Meters. 
1,085 
Maskelyne and 
1775 
4.71 
Mont Cenis.... 
Italy... 
1,943 
— 381 
251 
Hutton. 
Carlini. 
,1821 
4.67 
Harton. 
Arthurs Seat.. 
England .... 
Scotland. 
Airy. 
James and 
1854 
1855 
6.56 
5.32 
Fujinoyama... 
Japan. 
3,792 
Clarke. 
Mendenhall... 
1880 
5.77 
Pibram. 
Bohemia. 
— 1,000 
— 534 
3,058 
Von Sterneck.. 
1883 
5.77 
6.77 
5.57 
Freiberg. 
Haleakala .... 
Saxony . 
Hawaiian Isl¬ 
Von Sterneck.. 
Preston. 
1885 
1887 
Mauna Kea... 
ands. 
Hawaiian Isl¬ 
3,981 
Preston. 
1892 
5.13 
ands. 
Mean. 
5.59 
