Gilbert, Adrian, [11].
Gilgil Mauritanus, [19].
Gioia, or Goia, of Amalfi, [4].
Giulio Cæsare, [141].
glass, an electrick by friction, [48], [54], [59].
use of loadstone in making, [111].
goat's blood, [7].
Gonzalus Oviedus, [4].
Goropius, Henricus Becanus, [4].