. The authors are greatly indebted to Profesaor L Uritani, Department of Agriculture, Nagoya Univety, for Ol'iginally suggesting this work d his continued inte, and to Dr. J. Corse, Western ResearchLaboratory, Albany, California, for sending us copies of their two manuscripts pertaining to "isochlorogentc acld c" prior to publication. This work has been supported by a Plant Phenolics Grant-in-Aid ftom the Ministry of Education.