_, or
sucking-fish, reputed to have magical or magnetic powers, is mentioned by
many writers. As an example, see Fracastorio, _De Sympathia et Antipathia_,
lib. i., cap. 8, _De Echineide, quomodo firmare nauigia possit_ (Giunta
edition, Venet., 1574, p. 63). For other references to the _Echeneis_ see
Gaudentius Merula (_op. citat._) p. 209. Also Dr. Walter Charleton,
_Physiologia Epicuro Gassendo-Charltoniana_ (Lond., 1654), p. 375. Compare
p. 63, line 3.

[44] PAGE 7, LINE 33. Page 7, line 43. _Thomas Hariotus_, etc.--The four
Englishmen named were learned men who had contributed to navigation by
magnetic observations. Harriot's account of his voyage to Virginia is
printed in Hakluyt's _Voyages_. Robert Hues (or Hood) wrote a treatise _on
Globes_, the Latin edition of which appeared in 1593 (dedicated to Sir
Walter Raleigh), and the English edition in 1638. It was republisht by the
Hakluyt Society, 1889. Edward Wright, the mathematician and writer on
navigation, also wrote the preface to Gilbert's own book. Abraham Kendall,
or Abram Kendal was "Portulano," or sailing-master of Sir Robert Dudley's
ship the _Bear_, and is mentioned in Dudley's _Arcano del Mare_. On the
return of Dudley's expedition in 1595, he joined Drake's last expedition,
which sailed that year, and died on the same day as Drake himself, 28
January, 1596. (See _Hakluyt_, ed. 1809, iv., p. 73.)

[45] PAGE 7, LINE 36. Page 8, line 1. _Guilielmus Borough._--Borough's book
has the title: _A Discours of the Variation of the Cumpas, or magneticall
{20} Needle. Wherein is Mathematically shewed, the manner of the
obseruation, effectes, and application thereof, made by W. B._ And is to be
annexed to _The Newe Attractive_ of R. N., 1581 (London).

[46] PAGE 7, LINE 37. Page 8, line 2. _Guilielmus Barlo_.--Archdeacon
William Barlowe (author, in 1616, of the _Magneticall Aduertisements_)
wrote in 1597 a little work called _The Navigators Supply_. It gives a
description of the ordinary compass, and also one of a special form of
meridian compass provided with sights for taking the bearings by the sun.

[47] PAGE 7, LINE 37. Page 8, line 3. _Robertus Normannus_. See Note to p.
5.

[48] PAGE 8, LINE 14. Page 8, line 21. _illo fabuloso Plinij bubulco_.--The
following is Pliny's account from Philemon Holland's English version of
1601 (p. 586): "As for the name Magnes that it hath, it tooke it (as
_Nicander_ saith) of the first inventor and deviser thereof, who foun