This book, as an update on the author’s 1984-book Molecular Homoeopathy (COSMO, New Delhi), presents scientific theories, supported at crucial stages by actual observations to elucidate the homoeopathic principles and phenomena and goes beyond Homoeopathy to address the larger concerns of Science and human health. Book proposes three new sciences of Xenobiology, Inductive Chemistry & Inductoxenopathy to elucidate the science of Homoeopathy. The perennial mystery of homoeopathic ‘micro dose’ is resolved without violating the Avogadro’s law and the Law of Mass Action.Discusses Homoeoposology and potency selection in actual clinical practice.