e and occurrence, 19, 20, 22, 25.
filings of, 37, 69, 90, 91, 92, 104.
its various names and qualities, 23, 33, 36.
its various uses, 23, 24, 39, 86, 90, 95.
medical uses of, 33, 35.
surpasses loadstone, 69, 95.
verticity in, 85, 123, 139.
iron ore is magnetick, 18, 27, 38, 43.
has poles, 28.
islands, magnetick influence of, 5, 153,161.

Jacobus Severtius, 5.
jet, 47, 48, 53, 55, 86.
Joannes Baptista Porta. _See_ Porta.
Joannes Baptista Montanus, 2.
Joannes Costaeus. _See_ Costaeus.
Joannes Franciscus Offusius, 46.
Joannes Goia. _See_ Gioia.
Joannes Langius, 3.
Joannes Taisner, or Taisnier. _See_ Taisnier.
Jofrancus Offusius, 46.
Josephus Acosta, 5.
Julius Caesar Moderatus, 141.
Julius Caesar Scaliger. _See_ Scaliger.

Kendall, Abraham, 7, 178.
Korrah, Thebitius Ben. _See_ Bencora.

Lactantius, Lucius, 219.
Lagos, Rodriguez de, 177.
Langius, Joannes, 3.
_lapis magnetis_, 8.
_lapis specularis_, muscovy stone, or mica, 11, 48, 52.
latitude in relation to dip, 196, 200.
Leonardus (or Leonhardus), Camillus, 3.
Levinus Lemnius, 3.
{244}
lifting power of loadstones, 86, 89, 97.
lily of the compass, 117, 152, 165, 177.
liquids, electrical attraction of, 55.
attraction on surface of, 57.
Livio Sanuto, 5, 153, 167.
loadstone armed and unarmed, 86, 87, 88.
as medicine, 32.
in plasters, 33.
rock, the, 5, 6, 18, 116, 152.
various names of, 11.
colours of, 9, 10, 27.
various sources of, 8, 25, 32.
London, magnetick variation at, 154, 163.
longitude, magnetick finding at, 166.
long magnets, advantage of, 82, 83, 99, 101
Lucania, fall of meteorick stones in, 26.
Lucas Gauricus, 7.
Lucretius, 2, 3, 8, 49, 61.
Lusitanus, Amatus, 2.
Lynschoten, Hugo van, *iiij.

Magnes, [Greek: magnes], [Greek: magnetis], 11.
Magnesia, 8.
Magnetick axis of terrella, 81, 212.
axis of earth, 13, 81, 212.
horizon, 80.
meridian, 79, 152.
mountains or rocks, 5, 6, 18, 116, 152.
islands, 5, 153, 161.
motions, the five, 45.
Magnus, Albertus. _See_ Albertus.
Magnus, Olaus, 5, 6.
Mahometes Aractensis, 234, 237.
Mahomet's tomb, 2.
Manardus, Joannes, 35.
Marbodaeus Gallus, 2, 7.
Marcellus Empiricus, 2.
Marco Polo (Paulus Venetus), 4.
mariners' compass. _See_ compass.
Mars, saffron of (_Crocus Martis_), 34, 91.
Marsiglio Ficino. _See_ Ficinus.