CONTENTS: Preface, About the Authors, 1. Potentisation-Dr Pranab Kumar Chakraborty, 2. Hahnemannian Method of Drug Preparation (Old Method)-Dr Pranab Kumar Chakraborty, 3. Modern Method of Drug Prepration (New Method)-Dr Sunil K Bishnoi, 4. Scales of Potentisation-Dr Sunil K Bishnoi, 5. The Homoeopathic Doctrine of Dosage-Dr Anil Aggarwal, 6. Law of Homeopathic Potentisation-Dr Anil Aggarwal, 7. History of potentising Machines-Dr Vinay Kumar, 8. The Dynamic Action of Drug-Dr Vinay Kumar, Bibliography.