The Scientific Papers of Sir George Darwin

This volume of collected papers, published in 1911, covers periodic orbits and some miscellaneous topics.

Preface; Part I. Periodic orbits: 1. Periodic orbits; 2. On certain discontinuities connected with periodic orbits; 3. On certain families of periodic orbits; Part II. The Tides: 4. The tides; Part III. Miscellaneous Papers in Chronological Order: 5. On some proposed forms of slide-rule; 6. An application of Peaucellier's cell; 7. The mechanical description of equipotential lines; 8. On a mechanical representation of the second elliptic integral; 9. On maps of the world; 10. A geometric puzzle; 11. A geometric illustration of the potential of a distant centre of force; 12. On graphical interpolation and integration; 13. On a theorem in spherical harmonic analysis; 14. On fallible measures of variable quantities, and on the treatment of meteorological observations; 15. On the horizontal thrust of a mass of sand; 16. On the formation of ripple-mark in sand; 17. Note on Mr Davison's paper on the straining of the Earth's crust in cooling; 18. On the mechanical conditions of a swarm of meteorites, and on theories of cosmogony; 19. On the perturbation of a comet in the neighbourhood of a planet; 20. The Eulerian notation of the Earth's axis; 21. The analogy between Lesage's theory of gravitation and the repulsion of light; Part IV. Papers on Tides: 22. The tidal observations of the British Antarctic Expedition, 1907; 23. On a mistake in the instructions for the use of a certain apparatus in tidal reductions; 24. Geological time; 25. Presentation of the Medal of the Royal Astronomical Society to M. Henri Poincaré; 26. Cosmical evolution; Appendix: 27. Marriages between first cousins in England and their effects; 28. Note on the marriages of first cousins; Index.