GRAVITATIONAL STABILITY OF THE EARTH. 



237 



given in the second column of the table in 60, and then the coefficients which are 

 given in the third column of the same table. Finally I added the values belonging 

 to the same and <. The results are shown in the diagram (fig. 3), where the fine 



165' ISC' 135' 120' MS' 80* 7* 60" 46' 30* IB' 0* IS* 30* 4f 60* If XT IPS' I20* 135' I5QT 



IBS' ISO* US' "20* IDS' *T W W 45* *T 15' O* 15' 30" 46' 60* 75' Vf 105' IW IJST ISO" 165' 



ISO* I3y BO' K)5' 90 75' 60* 45' Vf \V V 3IT 45" 6O 7S' 9O" IPS' 120* I3S' IM' I6&- 



ISO" 135- IZO* 105 90* 7S* 60* 45* 30* IS* 0* IS 1 30" 4S* 60* W 90* 105 



Fig. 4. 



continuous line is the contour-line along which the calculated harmonic inequality 

 vanishes, the heavy continuous line is the contour-line along which this inequality is 

 10 per cent, of its maximum below zero, and the dotted line is the contour-line along 



