Martin Cortes, 5, 116, 152.
matter and form, 52, 65.
Matthaeus Silvaticus, 3.
Matthiolus, Petrus, 2, 3.
Mauritanus, Gilgil, 19.
Mauritanus, Serapio, 2, 6.
Maurolycus, Franciscus, 5, 42, 153, 180.
medicinal use of iron, 33.
of loadstone, 32.
Medina, Pedro de, 166.
Menelaus, 234, 237.
meridian, magnetick, 79, 152, 163.
Merula, Gaudentius, 7.
meteorick stones, falls of, 26, 27.
mica (or muscovy stone), 11, 48, 52.
[Greek: mikroge]. _See_ terrella.
moisture stops electrick action, 53, 56.
Montagnana, B., 35.
Montanus, Arias, 4.
Montanus, Joannes Baptista, 2.
Moors, Serapio and the, 6.
mountains, magnetick, 5, 6, 18, 116, 152.
movement of trepidation, 117.
Musa Brasavolus, Antonius, 2.
muscovy stone, 11, 48, 52. _See also_ mica.
myths of the magnet, 2, 3, 5, 6, 7, 18, 32, 63, 107, 109, 110, 111, 116,
143, 153, 228
motions, the various magnetical, 46.

Names of amber, 47.
names of the loadstone, 11.
names given to the magnetick poles, 15, 115, 125, 129.
Nicander of Colophon, 8, 9.
Nicetas, 214.
Nicolas Copernicus, 212, 214, 216, 231, 237, 238, 240
Nicolaus Myrepsus, or Praepositas, 33.
non-electrick bodies, 51, 55.
Nonius, Petrus (Pedro Nunez), 166.
Norman, Robert, 5, 8, 153, 161, 162.
supposes a point respective, 5, 153, 161, 162.
his _Newe Attractive_, 8.
discoverer of the dip, 8.
Norumbega, the city of, 154.
Nova Zembla, 152, 179.

Offusius, Jofrancus, 46.
Olaus Magnus, 5, 6.
opal becomes electrical, 48.
orbe of virtue, 76, 96, 191, 205
orbes of planets, 208, 215.
Oribasius, 2.
Orpheus, 11, 61, 209.
Oviedus, Gonzalus (Gonzalo Fernandez de Oviedo y Valdes), 4.

Pantarbes, 111.
Paolo (Paulus Aeginae), 35.
Paolo, Rev. Maestro (Fra Paolo Sarpi), 6
Paolo the Venetian (Marco Polo), 4.
Paracelsus (Bombast von Hohenheim).
asserts the stars to attract iron, 3.
his emplastrum of loadstone, 33.
his method of strengthening loadstones, 93.
Parmenides, 208.
pearls are not electrick, 51, 55.
Pedro de Medina, 166.
percussion excites verticity, 139.
Peregrinus, Peter,
his book, 5.
on cause of magnetick direction, 5, 116, 153.
on perpetual motion engine, 107.
affirms a terrella to revolve daily, 223.
{245}
Peripateticks, the, 20, 41, 43, 45, 65, 218, 222, 225, 227, 228.
perpetual motion machine, 107.
Peter Peregrinus. _See_ Peregrinus.