Diagram of solar orbit according to Zetetic theory of a flat earth
Astronomy -- Curiosa and miscellany.
In this volume, Samuel Rowbotham, writing under the pen name Parallax, attempts to prove his flat earth theory. He argues that all things we attribute to the Earth's curvature is an optical illusion that can be described by "parallaxes," which has to do with how we perceive nearby objects relative to more distant objects.
Zetetic astronomy : earth not a globe : an experimental inquiry into the true figure of the earth, proving it a plane, without orbital of axial motion, and the only known material world : its true position in the universe, comparatively recent formation, present chemical condition, and approaching destruction by fire, &c., &c., &c.
London : Day and Son