Flux equations derived from the thermodynamics of irreversible processes are applied to calculations on the probable pathway of short-distance translocation through non-vascular tissue. The Onsager theory predicts that a significant fraction of water is transported over short distances via an extracellular (cellulose cell wall) pathway. It is suggested that the Onsager equations are more comprehensive than other equations previously used, and the Onsager theory is found to support an increasing body of evidence for an extracellular pathway. Using the values of the Onsager coefficients measured in isolated Nitella cell walls, it is shown that an electrical gradient of I.5 mV/cm will cause the same water flux through cell walls as a pressure gradient of I atm/cm. It is suggested that electrical gradients can contribute significantly to short-distance trans-location.