This book is the second volume to "Quantitative Structure-Activity Relationships - Fundamentals and Applications of the Hansch Method," published in 2014, and consists of tables containing a wide range of physicochemical parameters (logP values in the octanol-water system, and electronic and steric substituent constants) necessary for research in quantitative structure-activity relationships (QSAR) and qualitative structure-activity relationships (SAR). Environmental protection agencies in various countries all require logP values for new industrial chemicals. The logP values included in this book were collected over 25 years by Hansch and Leo, the most prominent figures in this field, and were compiled into a database by Horkman. The tables included in this book are extremely valuable when reading books and papers that explain QSAR. From my father's collection. Please note that there may be minor scratches or wear and tear from storage in a private home.