Research articleRestricted accessResearch articleFirst published June, 1975pp. 75-83Archimedes's Measurement of the Sun's Apparent Diameter Alan E. ShapiroPreview abstractGet AccessAbstract
Research articleRestricted accessResearch articleFirst published June, 1975pp. 84-99Tychonian Observations,Perfect Numbers,and the Date of Creation: Longomontanus's Solar and Precessional Theories Kristian Peder MoesgaardPreview abstractGet AccessAbstract
Research articleRestricted accessResearch articleFirst published June, 1975pp. 100-114Further Work on the Brogar Lunar Observatory A. Thom, A. S. ThomPreview abstractGet AccessAbstract
Research articleRestricted accessResearch articleFirst published June, 1975pp. 115-125The Simultaneous ‘Discovery’ of Internal Motions in Spiral Nebulae Norriss S. HetheringtonPreview abstractGet AccessAbstract
Book reviewRestricted accessBook reviewFirst published June, 1975pp. 126-131Essay Review: The Tragicall History of Giovanni De' Dondi: The Planetarium of Giovanni de Dondi,Citizen of Padua A. J. TurnerPreview abstractGet AccessAbstract
Book reviewRestricted accessBook reviewFirst published June, 1975pp. 131-134Essay Review: The Harriot Symposium: Thomas Harriot,Renaissance Scientist J. A. LohnePreview abstractGet AccessAbstract
Book reviewRestricted accessBook reviewFirst published June, 1975pp. 135-137Essay Review: Science in India: A Concise History of Science in India Preview abstractGet AccessAbstract
Book reviewRestricted accessBook reviewFirst published June, 1975pp. 138-140Book Review: Two Model Astrolabes: The Astrolabe,the Astrolabe Janice HendersonPreview abstractGet AccessAbstract
Book reviewRestricted accessBook reviewFirst published June, 1975pp. 140-141Book Review: Research under Difficulties: Find a Falling Star Allan F. CookPreview abstractGet AccessAbstract
Book reviewRestricted accessBook reviewFirst published June, 1975pp. 141-142Book Review: Explaining the Milky Way: The Discovery of Our Galaxy M. A. HoskinPreview abstractGet AccessAbstract
OtherRestricted accessOtherFirst published June, 1975pp. 142-142Notices of Books Preview abstractGet AccessAbstract
Research articleRestricted accessResearch articleFirst published June, 1975pp. 143-147Astronomical Archives in Canada Richard A. JarrellPreview abstractGet AccessAbstract
OtherRestricted accessOtherFirst published June, 1975pp. 147-147American Dissertations in History of Astronomy Preview abstractGet AccessAbstract
OtherRestricted accessOtherFirst published June, 1975pp. 148-148Notes on Contributors Preview abstractGet AccessAbstract