 In fact, like Einstein’s GTR, Whitehead’s ATG leads to Newton’s theory of gravitation as a first approximation. Also (as shown by Eddington in 1924 and J. L. Synge in 1952) Einstein’s and Whitehead’s theories of gravitation lead to an identical solution for the problem of determining the gravitational field of a single, static, and spherically symmetric body—the Schwarzschild solution. This implies, for example, that Einstein’s GTR and Whitehead’s ATG lead to the exact same predictions not only with respect to the precession of the perihelion of Mercury and the bending of starlight in the gravitational field of the sun (as already shown by Whitehead in 1922 and William Temple in 1924) but also with respect to the red-shift of the spectral lines of light emitted by atoms in the gravitational field of the sun (contrary to Whitehead’s own conclusion in 1922, which was based on a highly schematized and soon outdated model of the molecule). Moreover (as shown by R. J. Russell and Christoph Wassermann in 1986 and published in 2004) Einstein’s and Whitehead’s theories of gravitation also lead to an identical solution for the problem of determining the gravitational field of a single, rotating, and axially symmetric body—the Kerr solution.