Protoplasm the only living substance — Cells — Every living cell protoplasm — First protoplasm — Protoplasm, how made — Cell-nucleus the centre of elaboration — Vital activity innate in cell-nucleus — Atoms and molecules — Origin and nature of atoms — Atoms always in motion — Attraction and repulsion — The Eternal Mind the source of matter and motion — Motion the source of life and mind — Cause and nature of chemical affinity and gravitation — Solution of the mystery and riddle of the universe — Origin of protoplasm Spontaneous generation — No break in Nature's chain Complex nature of protoplasm-different kinds of proto plasm — Life a result of the activity within protoplasm Mind a result of the activity within the grey nervous matter — Different grades of mind and their causes — Conscious ness, memory, recollection, will, judgment, the soul. Appendix, on abiogenesis — Special creations — Orderly development of the world.