Values of C = I ~2 A/Ok~ l-l/e, where A is the area of cross section of theFermi surface normal to kn (the derivative taken for the extremal cross section), have been computed over a wide range of orientations, for several different descriptions of the Fermi surfaces of Cu, Ag, and Au. These values, which are needed for the interpretation of de Haas-van Alphen oscillation amplitudes (see preceding paper), are presented in tabular form together with approximate values of 04 A/Ok~.