Abstract
This is an extension of the sin x/x method which was introduced by Y. TOMODA and K. AKI for two dimensional gravity interpretations. Numerical tables facilitating three dimensional gravity interpretations are presented.
Gravity values given at two dimensional grid points on the earth's surface are to be multiplied by corresponding tabular values and the products added up. The sum when divided by 2πG will represent the surface mass density at the assumed depth and immediately beneath the central grid point.
