Giles E. M. Gasper is Professor of High Medieval History in the Department of History at Durham University and Deputy Executive Dean for Research, Arts and Humanities Faculty, Durham University.Tom C. B. McLeish FRS is Professor of Natural Philosophy in the Department of Physics at the Centre for Medieval Studies and Humanities Research Centre at the University of York.Sigbjørn Olsen Sønnesyn is Lecturer in Medieval Christianity, University of Bristol.Hannah E. Smithson is Professor of Experimental Psychology, Department of Experimental Psychology, University of Oxford and Tutorial Fellow, Pembroke College, Oxford.

• List of Figures List of Bixes List of Tables List of Plates Abbreviations and Short Titles List of Contributors Author Credits Giles E. M. Gasper, Tom C. B. McLeish, Sigbjørn Olsen Sønnesyn, and Hannah E. Smithson: Introduction 1: Giles E. M. Gasper: On the Sphere and Locating Robert Grosseteste 2: Giles E. M. Gasper: Pastoral Care and MS Savile 21 3: Sigbjørn Olsen Sønnesyn: On the Sphere: Manuscripts, Translation, Historiography, and Synopsis Cecilia Panti (Editor) and Sigbjørn Olsen Sønnesyn (Translator): Latin Edition and English Translation of On the Liberal Arts 4: Brian K. Tanner: Commentary on the Model of the World Machine 5: Nader El-Bizri, Anne Lawrence-Mathers, C. Philipp E. Nothaft, Sigbjørn Olsen Sønnesyn, Tom C. B. McLeish, Jack Cunningham, and Giles E. M. Gasper: Missing from the Map: Concepts, Learning, Arguments, and the Utility of Astronomy 6: Sigbjørn Olsen Sønnesyn: Astronomy as Art and Astronomy as Science 7: Sigbjørn Olsen Sønnesyn: On the Sphere: Structure, Scope, and Sources 8: Tom C. B. McLeish and C. Philipp E. Nothaft: Trepidation or Precession: The Turning Point in a Tradition 9: Clive R. Siviour and Tom C. B. McLeish: Epicycles 10: Laura Cleaver and Sarah Griffin: Illuminating On the Sphere Concluding Reflections Giles E. M. Gasper, Tom C. B. McLeish, Sigbjørn Olsen Sønnesyn, and Hannah E. Smithson: The Virtual Celestial Model of On the Sphere Tom C. B. McLeish, Clive R. Siviour, and Jack Smith: Appendix 1 Sigbjørn Olsen Sønnesyn and Giles E. M. Gasper: Commissio Cancellarii Universitatis Oxoniensis - Concerning the Commission to the Chancellor of the University of Oxford Appendix 2 Laura Cleaver and Sarah Griffin: Manuscripts of On the Sphere with Diagrams Bibliography Indices

All in all, this edition goes far beyond its explicit aim and sets a new standard for editing and publishing medieval and early modern scientific texts. By demonstrating the added value of a multidisciplinary approach to the interpretation of Grosseteste's treatise - an approach that integrates linguistic analysis, historical context, and mathematical elucidation - this enterprise makes it clear that dynamic and collaborative ecosystems are a fundamental prerequisite for successful and meaningful editions.

Giles E. M. Gasper is Professor of High Medieval History in the Department of History at Durham University and Deputy Executive Dean for Research, Arts and Humanities Faculty, Durham University.Tom C. B. McLeish FRS is Professor of Natural Philosophy in the Department of Physics at the Centre for Medieval Studies and Humanities Research Centre at the University of York.Sigbjørn Olsen Sønnesyn is Lecturer in Medieval Christianity, University of Bristol.Hannah E. Smithson is Professor of Experimental Psychology, Department of Experimental Psychology, University of Oxford and Tutorial Fellow, Pembroke College, Oxford.

• List of Figures List of Bixes List of Tables List of Plates Abbreviations and Short Titles List of Contributors Author Credits Giles E. M. Gasper, Tom C. B. McLeish, Sigbjørn Olsen Sønnesyn, and Hannah E. Smithson: Introduction 1: Giles E. M. Gasper: On the Sphere and Locating Robert Grosseteste 2: Giles E. M. Gasper: Pastoral Care and MS Savile 21 3: Sigbjørn Olsen Sønnesyn: On the Sphere: Manuscripts, Translation, Historiography, and Synopsis Cecilia Panti (Editor) and Sigbjørn Olsen Sønnesyn (Translator): Latin Edition and English Translation of On the Liberal Arts 4: Brian K. Tanner: Commentary on the Model of the World Machine 5: Nader El-Bizri, Anne Lawrence-Mathers, C. Philipp E. Nothaft, Sigbjørn Olsen Sønnesyn, Tom C. B. McLeish, Jack Cunningham, and Giles E. M. Gasper: Missing from the Map: Concepts, Learning, Arguments, and the Utility of Astronomy 6: Sigbjørn Olsen Sønnesyn: Astronomy as Art and Astronomy as Science 7: Sigbjørn Olsen Sønnesyn: On the Sphere: Structure, Scope, and Sources 8: Tom C. B. McLeish and C. Philipp E. Nothaft: Trepidation or Precession: The Turning Point in a Tradition 9: Clive R. Siviour and Tom C. B. McLeish: Epicycles 10: Laura Cleaver and Sarah Griffin: Illuminating On the Sphere Concluding Reflections Giles E. M. Gasper, Tom C. B. McLeish, Sigbjørn Olsen Sønnesyn, and Hannah E. Smithson: The Virtual Celestial Model of On the Sphere Tom C. B. McLeish, Clive R. Siviour, and Jack Smith: Appendix 1 Sigbjørn Olsen Sønnesyn and Giles E. M. Gasper: Commissio Cancellarii Universitatis Oxoniensis - Concerning the Commission to the Chancellor of the University of Oxford Appendix 2 Laura Cleaver and Sarah Griffin: Manuscripts of On the Sphere with Diagrams Bibliography Indices

All in all, this edition goes far beyond its explicit aim and sets a new standard for editing and publishing medieval and early modern scientific texts. By demonstrating the added value of a multidisciplinary approach to the interpretation of Grosseteste's treatise - an approach that integrates linguistic analysis, historical context, and mathematical elucidation - this enterprise makes it clear that dynamic and collaborative ecosystems are a fundamental prerequisite for successful and meaningful editions.

Giles E. M. Gasper is Professor of High Medieval History in the Department of History at Durham University and Deputy Executive Dean for Research, Arts and Humanities Faculty, Durham University.Tom C. B. McLeish FRS is Professor of Natural Philosophy in the Department of Physics at the Centre for Medieval Studies and Humanities Research Centre at the University of York.Sigbjørn Olsen Sønnesyn is Lecturer in Medieval Christianity, University of Bristol.Hannah E. Smithson is Professor of Experimental Psychology, Department of Experimental Psychology, University of Oxford and Tutorial Fellow, Pembroke College, Oxford.

• List of Figures List of Bixes List of Tables List of Plates Abbreviations and Short Titles List of Contributors Author Credits Giles E. M. Gasper, Tom C. B. McLeish, Sigbjørn Olsen Sønnesyn, and Hannah E. Smithson: Introduction 1: Giles E. M. Gasper: On the Sphere and Locating Robert Grosseteste 2: Giles E. M. Gasper: Pastoral Care and MS Savile 21 3: Sigbjørn Olsen Sønnesyn: On the Sphere: Manuscripts, Translation, Historiography, and Synopsis Cecilia Panti (Editor) and Sigbjørn Olsen Sønnesyn (Translator): Latin Edition and English Translation of On the Liberal Arts 4: Brian K. Tanner: Commentary on the Model of the World Machine 5: Nader El-Bizri, Anne Lawrence-Mathers, C. Philipp E. Nothaft, Sigbjørn Olsen Sønnesyn, Tom C. B. McLeish, Jack Cunningham, and Giles E. M. Gasper: Missing from the Map: Concepts, Learning, Arguments, and the Utility of Astronomy 6: Sigbjørn Olsen Sønnesyn: Astronomy as Art and Astronomy as Science 7: Sigbjørn Olsen Sønnesyn: On the Sphere: Structure, Scope, and Sources 8: Tom C. B. McLeish and C. Philipp E. Nothaft: Trepidation or Precession: The Turning Point in a Tradition 9: Clive R. Siviour and Tom C. B. McLeish: Epicycles 10: Laura Cleaver and Sarah Griffin: Illuminating On the Sphere Concluding Reflections Giles E. M. Gasper, Tom C. B. McLeish, Sigbjørn Olsen Sønnesyn, and Hannah E. Smithson: The Virtual Celestial Model of On the Sphere Tom C. B. McLeish, Clive R. Siviour, and Jack Smith: Appendix 1 Sigbjørn Olsen Sønnesyn and Giles E. M. Gasper: Commissio Cancellarii Universitatis Oxoniensis - Concerning the Commission to the Chancellor of the University of Oxford Appendix 2 Laura Cleaver and Sarah Griffin: Manuscripts of On the Sphere with Diagrams Bibliography Indices

All in all, this edition goes far beyond its explicit aim and sets a new standard for editing and publishing medieval and early modern scientific texts. By demonstrating the added value of a multidisciplinary approach to the interpretation of Grosseteste's treatise - an approach that integrates linguistic analysis, historical context, and mathematical elucidation - this enterprise makes it clear that dynamic and collaborative ecosystems are a fundamental prerequisite for successful and meaningful editions.