The countenance is the title page which heralds the contents of the human volume, but like other title pages it sometimes puzzles, often misleads, and often says nothing to the purpose —William Matthews A desolate, cratered face, sooty with care like an abandoned mining town —Joseph Heller...
A Fortran program, ESFERA, is reported which calculates the volume and surface area of any molecule made of fused hard-spheres with unequal atomic radii. The input parameters are the atomic cartesian coordinates and radii for each atom or group....