Private Library, Ancona, II, 61 * * 1638 50 Episcopal Seminary, Macerata, II, 61 * 1638 50 Library Count Conestabile, Perugia, II, 61 * 1638 50 Library Cav. Carlotti, Piticchio, II, 61 * * 1638 50 Episcopal Seminary, Toscanella, II, 61 * * 1638 50 Joseph Baer, Frankfurt * * 1695 50 Episcopal Library, Benevento, II, 63 * * 1695 50 Technical Institute, Casale Monserrate, II, 63 * * 1695 50 Communal Library, Ferrara, II, 63 * 1695 50 Technical Institute, Florence, II, 63 * * 1695 50 Badia of Santa Maria, Gretta Ferrata, II, 63 * 1695 50 Communal Library, Imola, II, 63 * * 1695 50 Episcopal Seminary, Ivrea * 1695 50 The Hispanic Society of America, New York, II, 62 * * 1695 50 Communal Library, Osimo * 1695 50 Communal Library, Palestrina * * 1695 50 Communal Library, Savignano, II, 63 * 1695 50 Cathedral Library, Pescia * * 1695 50 HABRECHT, ISAAC (fl. 1625), II, 50. Communal Library, Asti, II, 53 * * 1619 21 Royal Museum, Cassel, II, 53 * 1625 21 The Hispanic Society of America, New York, II, 50 * 1625 21 German National Museum, Nürnberg, II, 53 * 1625 21 Communal Library, Sondrio, II, 53 * * 1625 21 HAHN, P. G. (1739-1790). German National Museum, Nürnberg * 1780 ? HARTMANN, GEORGE (fl. 1535), I, 117 * * HAUER, JOHANN (fl. 1625), II, 53. National Museum, Stockholm, II, 53 * 1620 ? HAUSLAB GLOBES. Library Prince Liechtenstein, Vienna, I, 75 (12 gores) * 1515 37 Library Prince Liechtenstein, Vienna, I, 75 * 1515 37 HEYDEN, CHRISTIAN (1526-1576), I, 156. Math. Phys. Salon, Dresden, I, 156 * 1560 7 HEROLDT, ADAM (fl. 1650), II, 64. Astronomical Museum, Rome, II, 65. * 1649 13 HILL, NATHANIEL (fl. 1750), II, 187. British Museum, London, II, 187 * * 1754 7 New York Public Library, New York, II, 188 * 1754 7 National Library, Paris, II, 187 * * 1754 7 HIPPARCHUS (fl. 160 B.C.). See reference in text, I, 19 * 2c B.C. ?