Astronomia crystallina, or, A new and clear way to know and perceive all the motions of the heavens, and also the motion of the earth plainly, as through a crystal-glass : far more easie and perspicuous than any before extant, whereunto is now added a postscript by way of dialogue between the author and two grand objectors, wherein all objections are fully answered and the objectors clearly confuted : composed according to the best observations, and most rational grounds of art /