polarities of the first and second order.

XIII. 'RADIANT MATTER'

Electricity and magnetism as manifestations of interacting levity and
gravity. Electricity - a product of disintegrating matter. Modern
physics, no longer a 'natural' science. Eddington's question,'
Manufacture or Discovery?' Man's enhanced responsibility in the age of
physical science.

XIV. COLOURS AS 'DEEDS AND SUFFERINGS OF LIGHT'

Goethe's Farbenlehre - the foundation of an optical science based on
the colour-seeing faculty of the eye. The modern physicist's view of
the Newtonian interpretation of the spectrum. A short history of
Goethe's search for a satisfactory conception of Light and Colour. His
discovery of Newton's cardinal error. First results of his own studies.
The 'negative' spectrum.

XV. SEEING AS 'DEED' - I

Goethe's way of studying the totality of the act of seeing. The 'inner
light'.

XVI. SEEING AS 'DEED' - II

Extension of Goethe's inquiry to a pursuit of the act of seeing beyond
the boundaries of the body.

XVII. OPTICS OF THE DOER