Wind velocities (dot-dashed line: 10^-14   M_⊙   yr^-1; dashed line: 5 × 10^-14   M_⊙   yr^-1) and diffusion velocities (solid when positive, toward the surface, and dotted when negative) of a few selected elements in a 1.90   M_⊙ model near the ZAMS. For most species, wind velocities decrease more rapidly inwards than diffusion velocities.