A Abbaco, Benedetto dell’, 5 Adda river, 124 “Adoration of the Magi,” 29, 30 Adriatic, the, 62, 93 “Air conditioner,” 69 Air, study of, 65, 66, 99 “Alarm clock,” 57 Albert of Saxony, 81 Alessandria, fortress of, 83 Alfonso of Calabria, 38 Alps, the, 37, 67 Amadeo, Antonio, 58 Amadori, Albiera di Giovanni, 2 Amadori, Alessandro, 3, 111 Amboise, _see_ Chateau d’Amboise Amontons, 134 Anatomy, human, 52, 53, 107, 109, 119, 125-127, 138 Anchiano, 2 Anemometer, 65, 66 Anemoscope, 65 Anghiari, battle of, 103, 110, 113 Aquadello, 124 Aquila, Battista dell’, 139 Arabs, the, 54 Archimedes, 41, 67, 81, 134 Architecture, 50, 58 Argyropoulos, John, 17 Aristotle, 17, 23, 42, 48, 81, 89 Arithmetic, 77 Arithmetico, Benedetto, 16 Armored vehicle, 39, 40 Arno river, 25, 31, 96, 100-106, 109 Arrezzo, 93 Ascanio, Cardinal, 83 Astronomy, 80-82, 104, 105 Atlantic Ocean, 19 “Automobile,” 32, 33 Autopsies, 107 Avicenna, 53 B Bacon, Francis, 160 Bacon, Roger, 120 Badia, the, 7 Battista, 155, 157 Bayzid II, 94 Beatis, Antonio de’, 151 Bianca Maria, 64 Bible, the, 62, 104, 141 Birds, flight of, 24, 65, 66, 76, 99, 119 Black Death, _see_ Bubonic plague Blois, 152 Bologna, 144 Bombard, 26 Bombs, 39 Borgia, Cesare, 82, 86-97, 102, 139 Borgias, the, 102 Botticelli, Sandro, 33 Boureau, Guillaume, 156 Bramante, 68, 131 Bridge building, 95 Bubonic plague, 45-47 Buonarroti, Michelangelo, _see_ Michelangelo C “Camera obscura,” 55 Campo Morto, battle of, 38 Cannon, 26, 33, 41 Caravaggio, siege of, 124 Cardano, Girolamo, 113 Carles, Geffroy, 115, 116 Carpentry, 135, 136 Cassano, castle of, 124 Castel’ Sant’ Angelo, 130 Caterina, 2 Cellini, Benvenuto, 100 Centrifugal pump, 121, 122 Cesena, 94 Chambord, castle of, 152 Charles d’Amboise, 94, 114-117, 121, 124, 127, 139 Chateau d’Amboise, 147-156 Cher river, 152 Christ, 30, 74, 77, 78 Church of the Annunciation of the Servite Order of Monks, 90 Church, the, 18, 48, 53, 63, 104, 145 Cioni, Andrea di Michele di Francesco de’, _see_ Verrochio, Andrea del City Planning, 44, 45, 47 City-states, 9, 10 Civitavecchia, 143, 144 Cloux, Manoir de, 148, 154, 156 Coins, minting of, 47 Collections, 4 Columbus, Christopher, 19 Constantinople, 95 Corte, Bernardino da, 83 Corte Vecchia, 56 Coulomb, A. C., 17, 134 Council of Eighty, 109 Council of Florence, 23, 106 Councilors and Tribunal of Venice, 89 Credi, Lorenzo di, 13 Cusanus, Cardinal, 42