About the book: 1897 / Karyshev’s trilogy “Fundamentals of True Science”, textbooks for officers of the tsarist army, 1895 edition. The abstract element of man, Phenomena from the Afterlife , Soul of materialists and positivists, Soul of spiritualists, Three elements of human being, Search for the fourth element, The doctrine of physics about matter, Semi-material shell, Human life, Death of man. It’s worth getting acquainted and separating the wheat from the chaff, taking the essence.