he Copernican
theory.

[249] PAGE 227, LINE 6. Page 227, line 7. This line is left out in the 1628
edition. In the 1633 edition it was also left out by the printer, and
subsequently printed in in the margin, being page 219 of that edition.

[250] PAGE 234, LINE 35. Page 234, line 40. _vt poli telluris respectus a
polis._--If it may be permitted to read _respectu_ for _respectus_ the
sense is improved, and the passage may then be translated thus: "that just
as it was needful ... that the poles of the Earth as to direction should be
23 degrees and more from the poles of the Ecliptick; so now, &c."

[251] PAGE 237, LINE 19. Page 237, line 22. _vt motus quidem obscuri
saluarentur._--It has been conjectured that _quidem_ is here a misprint for
_quidam_, but the adverb _quidem_ adds a satirical flavour to his argument
against the folly of those who held the doctrine of the moving spheres. The
verb _salvare_ does not occur in classical Latin.

[252] PAGE 240, LINE 13. Page 240, line 17. _a Copernico (Astronomiae
instauratore)._--Gilbert was the first in England to uphold the doctrines
of {62} Copernicus as to the motion of the earth on its axis and its
revolution around the sun. He considered that his magnetic observations
brought new support to that theory, and his views are quoted with
approbation by Kepler, _Epitome Astronomiae Copernicanae_ ... Authore
Ioanne Keplero ... (Francofurti, 1635); and by Galileo, _Dialogus de
Systemate Mundi_ (Augustae Treboc., 1635), an English translation of which
appeared in Salusbury's _Mathematical Collections and Translations_
(London, 1661, pp. 364 to 377).

For this the book _De Magnete_ was considered by many as heretical. Many of
the copies existing in Italy are found to be either mutilated or else
branded with a cross. For example, the copy in the library of the Collegio
Romano in Rome has book VI. torn out. Galileo states that the Book of
Gilbert would possibly never have come into his hands "if a Peripatetick
Philosopher, of great fame, as I believe to free his Library from its
contagion, had not given it me." In England Barlowe, in his _Magneticall
Aduertisements_ (1616), expressly repudiated Gilbert's Copernican notions,
while praising his discoveries in magnetism. Marke Ridley, while upholding
Gilbert's views, in his _Magneticall Animadversions_ (1617) did not
consider him "skilfull in Copernicus." The Jesuit writers, Cabeus, Kircher,
Fonseca, Grandamicus, Schott, Leotaudus,