Leonardo da Vinci, Pathfinder of Science
Ptolemaic theory   Geography, 18, 19   Geology, 103, 104   Geometry, 91, 134   Georg, 131, 133, 140, 143, 145   Geotropism, 79   Germany, 47, 69   Ghirlandaio, Domenico di Tommaso del, 33   Giocondo, Francesco del, 98   Giovanni "the Piper," 100   Gonzaga, Francesco, 86   Gothic tradition, 50   Gravity, 140, 141   Greeks, the, 69   Guido, 23   Guild, 19                                       H   Hadrian, Emperor, 130   Harvey, William, 126, 160   Heavens, observation of, 80   Heliocentric theory, 48, 81   Heliotropism, 79   Highmore, 53   Hippocrates, 52   Holy Roman Empire, 9   Hooke, Robert, 141   Horse, anatomy of the, 41   Hydraulic pump, 74, 122, 123   Hydraulics, 14   Hydrodynamics, 141   Hygrometer, 30, 31                                       I   Imola, 95, 96   Inclination gauge, 66, 67   India, 18   _Introduction to Perspective, or the Function of the Eye_, 58   Inventions, 25-27, 38-40   Irradiation, 55   Irrigation, 101   Isabella of Aragon, 51   Isonzo river, 88   Istanbul, _see_