Our Monistic god, the all-embracing essence of the world, the Nature-god of Spinoza and Goethe, is identical with the eternal, all-inspiring energy, and is one, in eternal and infinite substance, with space-filling matter. It "lives and moves in all things," as the Gospel says. And as we see that the law of substance is universal, that the conservation of matter and of energy is inseparably connected, and that the ceaseless development of this substance follows the same "eternal iron laws," we find God in natural law itself. The will of God is at work in every falling drop of rain and every growing crystal, in the scent of the rose and the spirit of man. APPENDIX EVOLUTIONARY TABLES 1.--GEOLOGICAL AGES AND PERIODS -----------------+------------------+------------------+------------------ Ages in the | | |Approximate length Organic History | Periods of | Vertebrate |of Paleontological of the Earth. | Geology | Fossils. | Periods. -----------------+------------------+------------------+------------------ | {1. Laurentian | | I. Archeozoic age| { | | 52 million years (primordial) | { | No fossil |Sedimentary strata | {2. Huronian | remains of | 63,000 ft. thick | | vertebrates | Age of | 3. Cambrian | | invertebrates | | | -----------------+------------------+------------------+------------------ | | | | 4. Silurian | Fishes | | | | II. Paleozoic age| 5. Devonian | Dipneusts | 34 million years (primary) | | |Sedimentary strata Age of fishes | 6. Carboniferous| Amphibia | 41,200 ft. thick | | | | 7. Permian | Reptiles | -----------------+------------------+------------------+------------------ | | | | 8. Triassic | Monotremes | III. Mesozoic age| | | 11 million years (secondary) | 9. Jurassic | Marsupials |Sedimentary strata Age of reptiles| | | 12,200 ft. thick | 10. Cretaceous | {_Mallotheria_ | | | {Pro-placentals | -----------------+------------------+------------------+------------------ | | | | 11. Eocene | {_Prosimiæ_ | | | { Lemurs |