Millietus, and De Lanis, one and
all, who followed Gilbert in their magnetic writings, repudiated the idea
that the magnetism of the globe gave support to the heretical modern
Astronomy.

The works referred to are:

Cabeus, _Philosophia Magnetica, in qua Magnetis natura penitus explicatur
... auctore Nicolao Cabeo Ferrarensi Soc. Jesv._ (Ferrariae, 1629).

Kircher, _Magnes, Siue de Arte Magnetica, Libri tres, Authore Athanasio
Kirchero ... e Soc. Iesv._ (Romae, 1641).

Grandamicus, _Nova Demonstratio immobilitatis terrae petita ex virtute
magnetica_ (Flexiae, 1645). This work is most beautifully illustrated with
copper-plate etchings of cupids making experiments with terrellas.

Schott, Gaspar, _Thaumaturgus Physicus_ (Herbipolis, 1659).

Leotaudus, _R. P. Vincentinii Leotavdi Delphinatis, Societ. Iesv.,
Magnetologia; in qva exponitvr Nova de Magneticis Philosophia_, (Lvgdvni,
1668).

Millietus (Milliet Deschales), _Cursus seu Mundus Mathematicus_ (Lugd.,
1674), _Tomus Primus, Tractatus de Magnete_.

De Lanis, _Magisterium Natvrae et Artis. Opus Physico-Mathematicvm P.
Francisci Tertii de Lanis, Soc. Jesv._ (Brixiae, 1684).

[253] PAGE 240, LINE 24. Page 240, line 31. _hic finem & periodum
imponimus._

On February 13 [1601] Gilbert wrote to Barlowe (see _Magneticall
Aduertisements_, p. 88):

"I purpose to adioyne an appendix of six or eight sheets of paper to my
booke after a while, I am in hand with it of some new inventions, and I
would haue some of your experiments, in your name and inuention put into
it, if you please, that you may be knowen for an augmenter of that arte."

This he never did. Perhaps his appointment (in February, 1601) as chief
physician in personal attendance on the Queen interfered with the project;
or his death, of the plague, in 1603, intervened before his intention had
been carried into effect. But it is probable that the substance of the
proposed additions is to be found in the chapter, publisht in Gilbert's
lifetime, in Blundevile's _Theoriques of the seuen Planets_ (London, 1602),
thus described in the title-page of the work: "There is also hereto added,
{63} The making, description, and vse, of two most ingenious and necessarie
Instruments for Sea-men, to find out thereby the latitude of any Place vpon
the Sea or Land, in the darkest night that is, without the helpe of Sunne,
Moone, or Starre. First inuented by M. Doctor Gilbert, a most excellent
Philosopher, and one of the or