Filtering by: Classmark FAH Astrology & Astronomy - Texts Remove constraint Classmark: FAH Astrology & Astronomy - Texts Author Knapp, Martin, 1883- Remove constraint Author: Knapp, Martin, 1883- Date 1934 Remove constraint Date: 1934 Subject Venus (Planet) -- Orbit. Remove constraint Subject: Venus (Planet) -- Orbit. Subject Signs and symbols. Remove constraint Subject: Signs and symbols.