This book offers an in-depth review of the mineral remedies in conformity with scientific chemistry, and the known effects of remedies both aspoisonings and through provings. The book is focused on the constitutional as well as numerous mineral remedies, their biochemistry and their clinical picture. The unique phenomenon of the law of Octaves is also being explianed by Dr Otto Lesser in this book, as each element in a group exhibited similar drug effects during their proving. It is based on the study of drugs analysing the groups bearing the similar symptomatology, as Alkalis (including Potassium, Sodium, Lithium, Ammonium, Magnesium, Calcium, Strontium, Barium), Halogens, Sulphur group, Nitrogen group, Boron-Aluminium group, Carbon group, Heavy metals, etc. Also, a therapeutic index mentioning the main remedies for various pathological conditions is being arranged in an alphabetical order in the end.