In these days of search it requires a particularly vigilant mind to keen pace with the new theories which are con stantly being broached by investigaters. Modern scientists appear not to have tle of Dar win, who waited 20 years before giving to the world his theory of Nati lwetion. We are led to this r n by the report of the esta Imterest Phadear tai th to read about the same time that the presidential address of Sir mest Rutherford to ihe British
Text read from the printed page and cleaned; old type leaves the occasional error.