Tychonian Observations,Perfect Numbers,and the Date of Creation: Longomontanus's Solar and Precessional Theories

Billard R. , L'astronomie Indienne: Investigations des textes et des données numériques (École Fran&çaise d'Extrême-Orient, Paris, 1971).

Brahe T. , Opera omnia, edited by Dreyer J. L. E. (15 vols, Hauniæ, 1913–29).

Duhem P. , Le système du monde (10 vols, Paris, 1913–59).

Copernicus N. , De revolutionibus orbium cælestium, libri VI (Norimbergæ, 1543)—quoted by book and chapter.

Goldstein B. R. , “On the Theory of Trepidation According to Thābit b. Qurra and al-Zarqāllu and its Implications for Homocentric Planetary Theory”, Centaurus, x (1964), 232–47.

Goldstein B. R. , Al-Bitrūjī: On the principles of astronomy (2 vols, New Haven, 1971).

Heath T. , A history of Greek mathematics (2 vols, Oxford, 1960).

Kepler J. , Gesammelte Werke, edited by Caspar Max (18 vols, Munich, 1938–59).

Longomontanus C. S. , Astronomia Danica … in duas partes tributa, quarum prior doctrinam de diurna apparente siderum revolutione … explicat; posterior theorias de motibus planetarum … complectitur (Amsterdami, 1622, 1640, 1663)—quotations refer to the 1640 edition.

Longomontanus C. S. , Disputatio tertia de temporis trium præcipuarum epocharum, nempe I. Mundi conditi, II. Christi nati …, III. Olympiadis Iphiteæ, vera in annis Julianis etc. constitutione (Hafniæ, 1629).

Mercier R. P. , Thābit ibn Qurra's model of trepidation (unpublished notes to lecture given at Aarhus in May 1974).

Moesgaard K. P. , “The 1717 Egyptian Years and the Copernican Theory of Precession”, Centaurus, xiii (1968), 120–38.

Moesgaard K. P. , “Copernican Influence on Tycho Brahe” (Wroclaw, 1972; Studia Copernicana v = Colloquia Copernicana i, 31–55), and “How Copernicanism took root in Denmark and Norway” (ibidem, 117–51).

Moesgaard K. P. , “Success and Failure in Copernicus' Planetary Theories”, Archives internationales d'histoire des sciences, xxiv (1974), 73–111, and to appear.

Moesgaard K. P. , “Thābit Ibn Qurra between Ptolemy and Copernicus: An Analysis of Thābit's Solar Theory”, Archive for history of exact sciences, xii (1974), 199–216.

Moesgaard K. P. , “Cosmology in the Wake of Tycho Brahe's Astronomy” (to be published in Foundations of physics: Cosmology—history of science—theology, edited by Yourgrau W. , Denver).

Nielsen N. , Matematiken i Danmark, 1528–1800 (Copenhagen, Kristiania, 1912).

Petersen V. M. and Schmidt O. , “The Determination of the Longitude of the Apogee of the Orbit of the Sun according to Hipparchus and Ptolemy”, Centaurus, xii (1968), 73–96.

Ptolemäus , Handbuch der Astronomie, translated by Manitius K. (2 vols, Leipzig, 1963)—quoted by book and chapter.

Rosen E. , Three Copernican treatises (New York, 1959; enlarged edition 1971).

Tuckermann B. , Planetary, lunar, and solar positions 601 B.C. to A.D. 1649, at five-day and ten-day intervals (2 vols, Philadelphia, 1962 and 1969).