d it
(by his saying) upon the mountaine Ida (for now it is to be had in all
other countries, like as in Spaine also;) and (by report) a Neat-heard he
was: who, as he kept his beasts upon the aforesaid mountaine, might
perceive as he went up and downe, both the hob-nailes which were on his
shoes, and also the yron picke or graine of his staffe, to sticke unto the
said stone."

[49] PAGE 9, LINE 22. Page 9, line 30. _Differentiae priscis ex
colore_.--Pliny's account of the loadstones of different colours which came
from different regions is mainly taken from Sotacus. The white magnet,
which was friable, like pumice, and which did not draw iron, was probably
simply magnesia. The blue loadstones were the best. See p. 587 of Holland's
translation of Pliny, London, 1601. St. Isidore (_Originum seu
Etymologiarum_, lib. xvi., cap. 4) says: "Omnis autem magnes tanta melior
est, quanto [magis] caeruleus est."

[50] PAGE 10, LINE 29. Page 10, line 42. _Suarcebergo ... Snebergum &
Annaebergum_.--In the Stettin editions of 1628 and 1633 these are spelled
_Swarcebergs ... Schnebergum & Annebergum_. The Cordus given as authority
for these localities is Valerius Cordus, the commentator on Dioscorides.

[51] PAGE 11, LINE 3. Page 11, line 12. _Adriani Gilberti viri
nobilis_.--"Adrian Gylbert of Sandridge in the Countie of Devon, Gentleman"
is the description of the person to whom Queen Elizabeth granted a patent
for the discovery of a North-West passage to China. See Hakluyt's
_Voyages_, vol. iii., p. 96.

[52] PAGE 11, LINE 17. Page 11, line 28. _Dicitur a Graecis_ [Greek:
eraklios].--The discussion of the names of the magnet in different
languages by Gilbert in this place is far from complete. He gives little
more than is to be found in Pliny. For more complete discussions the reader
is referred to Buttmann, _Bemerkungen ueber die Benennungen einiger
Mineralien bei den Alten, vorzueglich des Magnetes und des Basaltes_
(Musaeum der Alterthumswissenschaft, Bd. II., pp. 5-52, and 102-104, 1808);
G. Fournier, _Hydrographie_ (livre xi., chap. I, 1643); Ulisse Aldrovandi,
_Musaeum Metallicum_ (Bononiae, 1648, lib. iv., cap. 2, p. 554); Klaproth,
_Lettre a M. le Baron A. de Humboldt, sur l'invention de la Boussole_,
Paris, 1834; T. S. Davies, _The History of Magnetical Discovery_ (Thomson's
_British Annual_, 1837, pp. 250-257); Th. Henri Martin, _De l'Aimant, de
ses noms divers et de ses varietes suivant les Anciens_ (Memoires presentes