b1795019__Alchemy_and_Astrology__p__4____Astrological_Description
[Name] Mars Once every 2 years [Astrological Description] 
Mars is the fuel that operates the ego. It represents the residual traces of man's animal nature. It is the force in nature that establishes the survival of the fittest.
Claus Furstner - The Anatomy of Self with The Chakras, Hermetic Alchemy and Astrology (p. 4.)
Astrological Description