January 1909 Issue [Article] The beginning of things Adjust Share by Robert Kennedy Duncan, This article is only available as a PDF to subscribers. Download PDF Tags Celestial mechanics Earth Forest Ray Moulton Nebular hypothesis Origin Pierre Simon, marquis de Laplace Planetary nebulae Thomas C. (Thomas Chrowder) Chamberlin More from Robert Kennedy Duncan Industrial research Some unsolved problems in science The prizes of chemistry Adjust Share