²⁶ In this second series, Jupiter and Saturn also appear to take part, but as a joint influence, working on a cycle of 390 days

• Every 390 days these two planets return to a mean relation with the Earth, and make equal angles with Earth and Sun — that is, their influences balance.
• Such a cycle coincides with no less than five of the eight stages of this series — do (× 6), mi (× 7½), fa (× 8), sol (× 9), do (× 12). A curious corroborating fact will be touched on in Chapter 10, 'Man as Microcosm'.