Discussion of The FUNDAMENTAL EQUATION OF VISCOSITY Available to Purchase

MICHEL ROEGIERS is Managing Director of Societe des Huiles de Gavel & Roegiers, Elektrion Oil Laboratories, Ghent, Belgium, and has carried considerable research in the subject of this paper. In former work, referred to in this paper, he has derived, by physicomathematical reasoning from the Boltzmann‐formula, a set of isothermal laws applying to the macroscopic properties of normal fluids and their mixtures. Those of our readers who are interested in Physico‐Chemistry and Rheology, and who are competenl to do so, may like to discuss this paper in our columns, and we invite them to do so, with particular emphasis upon its ultimate value to practical lubrication.