An Account of the Astronomical Discoveries of Kepler - Including an Historical Review of the Systems, Which Had Successively Prevailed Before His Time #248694

Though the attempts to be now mentioned for deducing the equations of Mars, in the oval theory, were equally un successful with the rest, it seems impossible to form a just conception, either of the character of Kepler, or of his pro gress in the prosecution of his discoveries, without consider ing them.