As to the discoverer of a previously unknown planet, your inquirer should be told, that more is necessary than its merely coming within the field of an observer's telescope, even if it attracts his notice. Some years before 1781, the year in which Herschel discovered the planet which should perpetuate his name, Lalande had noted down an observation of a star, of a certain magnitude, in a position where afterwards no such star could be found, but where calculations since made, from the known orbit of that planet, prove that it must then have been. By failing to continue his observation of it, till it should have changed its place amongst the fixed stars, Lalande lost the discovery. And though Herschel's much more powerful telescope enabled him to perceive, on a first inspection, that it had a defined disc, more observations were required to enable him to say that it could not be a comet shorn of his beams: whilst, as to the last discovered planets, I think we have been told that their apparent size is but that of a star of the ninth order, in decreasing magnitude; and no part of the heavens has been so accurately mapped as to give an observer reason to conclude, from catching sight of one of these planetary fragments, that he has detected an obscure wanderer not usually seen in that locality. But if its appearance leads his practised eye to suspect that it shines with but borrowed light, and that induces him to continue his nightly watch, he receives his reward, if it be so, and announces the existence of another planet. HENRY WALTER. * * * * * STORY OF GENOVEVA. (Vol. vii., p. 133.) The story of Genoveva is a popular German legend, and is given in No. 8 of the _Volksbücher_, published at Leipzig, 1838.