Note 175 — Chapter IV · THE PROBLEM OF WORLD-HISTORY (continued 2)

The formation of hypotheses in Chemistry is much more thoughtless, owing to the less close relation of that science to mathematics. A house of cards such as is presented to us in the researches of the moment on atom-structure (see, for example, M. Born, Der Aufbau der Materie, 1920) would be impossible in the near neighbourhood of the electro-magnetic theory of light, whose authors never for a moment lost sight of the frontier between mathematical vision and its representation by a picture, or of the fact that this was only a picture.