XVIII. THE SPECTRUM AS A SCRIPT OF THE SPIRIT
Evaluation of the foregoing studies for a new understanding of the prismatic phenomenon. The secret of the rainbow. Intimation of new possibilities of experimental research guided by the new conception of the spectrum.
Part III TOWARDS A NEW COSMOLOGY
XIX. THE COUNTRY IN WHICH MAN IS NOT A STRANGER
(a) INTRODUCTORY NOTE
From Goethe's seeing with the eye-of-the-spirit to Spiritual Imagination. Levity (Ether) as revealed to Spiritual Imagination.
(b) - (e) WARMTH LIGHT SOUND LIFE
The four modifications of ether. Their relation to the four elements.
XX. PRO ANIMA