We have now developed the difficulties sufficiently and must therefore try to find a solution of the problem while preserving the theses that the growing thing persists, that it grows by the accession (and diminishes by the departure) of something, further that every perceptible particle of it has become either larger or smaller, the growing body is not void and that yet there are not two magnitudes in the same place, and that it does not grow by the accession of something incorporeal.