UNCLASSIFIED 



Security Classification 



Cubic Splines 



Interpolation 



Geophysical Survey Design 



Bicubic Splines 



Fourier Transforms 



Mean Free-air Gravity Anomalies 



Physical Geodesy 



Gravity 



DD , F N r„1473 (back, 



UNCLASSIFIED 



(PAGE 2) 



Security Classification 



