The R. S. Jane Memorial Lecture Award was established to commemorate the memory of the late Dr. Robert Stephen Jane who made an outstanding contribution to the chemical profession and the chemical industry in Canada. It is presented to a resident of Canada for exceptional achievement in the field of chemical engineering or industrial chemistry. The Lecture is presented at the annual C.I.C. Canadian Chemical Engineering Conference. Mr. Renzoni, recipient for 1968, presented this paper at the 1968 Tripartite Chemical Engineering Conference, September 22–25, 1968, in Montreal, Quebec.