notice of Sarpi in Park Benjamin's _Intellectual Rise in Electricity_.)

[33] PAGE 6, LINE 7. Page 6, line 11.: _R. M. Paulus Venetus_. See
preceding note.

[34] PAGE 6, LINE 21. Page 6, line 28.: _Franciscus Rueus_.--Francois de la
Rue, author of _De Gemmis Aliquot_ ... (Paris, 1547). Amongst other fables
narrated by Rueus is that if a magnet is hung on a balance, when a piece of
iron is attracted and adheres to the magnet, it adds nothing to the weight!

[35] PAGE 6, LINE 25. Page 6, line 33.: _Serapio_.--This account of the
magnetic mountains will be found in an early pharmacology printed in 1531
(Argentorati, G. Ulricher Andlenus), with the title "In hoc volumine
continetur insignium medicorum Joan. Serapionis Arabis de Simplicibus
Medicinis opus praeclarum et ingens, Averrois Arabis de eisdem liber
eximius, Rasis filius Zachariae de eisdem opusculum perutile." It was
edited by Otho Brunsels. Achilles P. Gasser, in his Appendix to the
Augsburg edition of Peregrinus, gives a reference to Serapio Mauritanus,
parte 2, cap. 394, libri _de medicinis compositis._

[36] PAGE 6, LINE 30. Page 6, line 39.: _Olaus Magnus_. See note to p. 5.

[37] PAGE 6, LINE 34. Page 6, line 44.: _Hali Abas_.--A reference is given
in Gasser's (1558) edition of Peregrinus to Haliabbas Arabs, lib. 2,
_practicae_ cap. 45, _Regalis Dispositionis Medicinae_. The passage to
which Gilbert refers is found in the volume _Liber totius medicinae
necessaria c[=o]tinens ... quem Haly filius Abbas ... edidit ... et a
Stephano ex arabica lingua reductus_. (Lugd., 1523, 4to.) Liber Primus.
Practice, Cap xlv. _de speciebus lapidum_, s. 466. "Lapis magnetes filis e
[=v]tute sadenego: & aiunt q[=m] si teneat^r in manu mitigat [=q] sunt in
pedib^s ipis dolores ac spasm[=u]."

Mr. A. G. Ellis identifies the noun _sadenegum_ as a Latin corruption of
the Arabic name of haematite, _shadanaj_.

[38] PAGE 6, LINE 36. Page 6, line 46.: _Pictorius_.--His poem was publisht
at Basel, 1567. See also note on Marbodaeus, p. 7, line 20, below.

[39] PAGE 6, LINE 36. Page 7, line 1.: _Albertus Magnus_.--Albertus, the
celebrated Archbishop of Ratisbon, is responsible for propagating sundry of
the myths of the magnet; and Gilbert never loses a chance of girding at
him. {18} The following examples are taken from the treatise _De
mineralibus et rebus metallicis_ (Liber II. _de lapidibus preciosis_),
Venet., 1542.

p. 171. "Et quod mirabile videtur multis his lapis [adama