Dendrite array dimensions have been measured under steady state growth conditions in the transparent material systems, ammonium chloride-water and succinonitrile-water. The measurements were made as functions of growth rate, V, and temperature gradient, G, and the results compared with the current analysis of Hunt and Lu. Close agreement with the analysis was found for the system [CH2CN](2)-H2O, but less so for the system NH4Cl-H2O in which the volume fraction of solid is very small. The data are presented as a reference base for subsequent examination of array behavior under transient conditions following deceleration. (C) 2002 Elsevier Science B.V. All rights reserved.