"Scandium" Quotes from Famous Books
... unchangeableness, we can then logically infer what it will do under other hypothetical conditions, and in this way many important discoveries have been made. For instance it was in this way that Mendeleef, the Russian chemist, assumed the existence of three then unknown chemical elements, now called Scandium, Gallium and Germanium. There was a gap in the orderly sequence of the chemical elements, and relying on the old maxim—"Natura nihil facit per saltum"—Nature nowhere leaves a gap to jump over—he argued that if such elements ... — The Law and the Word • Thomas Troward |