Measurements of the recoverable shear,susing three different methods, recoil, Weissenberg rheogoniometer, and flow birefringence, have been made on solutions of polyisobutylene in oil and polystyrene in Aroclor. All three methods, within their applicability limits, gave consistent results, calculating the recoil values from the rheogoniometer without the factor of12required by the theories using constitutive equations for viscoelastic liquids. Especially, these experiments with “matching solvents” gave a very good agreement onsmeasured in the rheogoniometer and flow birefringence.