Table 91 . 



RELATIVE ACCELERATION OF GRAVITY AT DIFFERENT LATITUDES. 



Ratio of the acceleration of gravity at sea level for each lo' of latitude, to its acceleration at 



latitude 45°. 



Sib 



1 — o.cx)2640 cos 2<p -\- 0.000007 cos"^ 2 <f> 



Smithsonian Tables. 



208 



