For Zwingli, see Wolf, p.
235.

For Arietus, see Madler, Geschichte der Himmelskunde, vol.ii.

For Kepler's superstition, see Wolf, p.281.For Voight, see Himmels-Manaten Reichstage, Hamburg, 1676.

For both Fromundus and Voigt, see also Madler, vol.ii, p.

399, and Lecky, Rationalism in Europe, vol.i, p.28.
II.