80 h 

 cm 



60 



40 



20 



"1 r 



1 1 r 



1 r 



4^. 



O/) 



S, 



Oy y 







A 



-20 





-40 



•60 

 cm 



J I \ L 



30° N 



40°N 



Figure 4. Relative heights of mean sea level vs. latitude based 

 on the Special Leveling Adjustment of 1963 (after 

 Braaten and McCombs 1963) . Atlantic and Pacific coast 

 tidal stations are shown by dots; Gulf Coast stations 

 by triangles. The lines have slope 0.28 x 10" . Vertical 

 exaggeration is approximately 2 x 10 . 



24-13 



