Publisher's Synopsis
Excerpt from Researches in Theoretical Geology
Drrrsasxr densities of the sun and known planets, page 1. Possible change of the density of the earth during the lap of time, 1. Heat may counteract the effects of gravity in the sun and planets, 2. Small relative density of the sun, 2. Matter of the moon, 3. Matter of the planets, 3. Figure of the earth, 6. Change in the condition of the globe's surface, 6. Solid matter existed before the production of detrital rocks, 6. Cubic contents of detrital rocks consi derable, 6. Oxygen in earth's crust, 7. Hydrogen in the same, 9. Nitrogen, 11. Carbon, 11. Sulphur, 13. Chlo rine, 14. Phosphorus, Boron, Selenium, Iodine and Bro mine, 15. Fluorine, 16. Silicium, 17. Aluminium, 18. Potassium, 19. Sodium and Magnesium, 20. Calcium, 21. Iron, 22. Manganese, 23. Chromium, Titanium, &c., 23. Sixteen simple substances form the great proportion of matter, organic and inorganic, on earth's surface, 24.
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