White, I.2026-01-052026-01-050361-5995ORCID:/0000-0002-5455-4514/work/177372889https://hdl.handle.net/1885/733803772The flux-concentration relation of J. R. Philip is calculated using moisture profiles measured during absorption of water by a fine sand when water was supplied at both constant hydraulic potential and constant The general The general behavior of the measured flux-concentration relations was found to be consistent with those of the model soils calculated by Philip. Within the accuracy of the measurements, no significant time-dependence of the relation was found for the constant flux boundary condition over a large time span.7en197910.2136/sssaj1979.03615995004300060003x0018656501