Burt Hopkins is an associate member of Université de Lille, UMR-CNRS 8163 STL, France, and a visiting researcher at the Institute of Philosophy, Czech Academy of Sciences (2019-2020).

John Drummond is Robert Southwell, S.J. Distinguished Professor of Philosophy and the Humanities at Fordham University, USA.

Part 1: Text 1. The End of Objectivity Gian-Carlo Rota Part 2: Discussion Essays on the Philosophy of R. H. Lotze 2. Editorial introduction Daniele De Santis and Nicolas de Warren 3. Lotze's Concept of "Wirklichkeit" in Dialogue with Herbart's Realism Luis Niel 4. The Mind-Body Relation in Hermann Lotze's Medicinische Psychologie Michele Vagnetti 5. Proteus, or 'über den Grund der Zusammengehörigkeit': R. H. Lotze on Idea, Concept, and Variation (via Frege and Heidegger) Daniele De Santis 6. Entschlüße (Frege on Decisions) Mario Ariel González Porta 7. Holism, Contextuality and Compositionality: Lotze's Influence on Husserl Mirja Hartimo Part 3: Essays on Jacob Klein 8. Introduction Giovanna Cifoletti 9. How Letters become Symbols: Jacob Klein's Genealogy of FormalizationGabrielle Baratelli 10. Jacob Klein on François Viète and the Birth of the Modern Symbolic Concept of 'Number' Burt Hopkins 11. Stevin's Mathesis and Number Jean-Marie Coquard 12. 'New' Early Modern Evidence for Jacob Klein's Theses Giovanna Cifoletti Part 4: Phenomenology and Mathematics 13. Number as Ideal Species: Husserlian and Contemporary Perspectives Michael Roubach 14. Three Remarks on Mathematical Perception Yuval Dolev 15. Robinson's Monad and Phenomenology Talia Leven Part 5: Varia 16. Being, phi s , and Worumwillen (8300 words) Franco Trabattoni 17. The Radical Splitting and Re-uniting of the Transcendental Life: Eugen Fink's Sixth Cartesian Meditation Revisited Ah Hyun Moon Part 6: In Review 18. On the Correct Interpretation of the God Jupiter in Husserl's Vth Logical Investigation Stefania Centrone 19. J. K. Cosgrove, Relativity without Spacetime (London: Palgrave Macmillan, 2018) John Roche 20. T. Arnold, Phänomenologie als Platonismus. Zu den Platonischen Wesensmomenten der Philosophie Edmund Husserls (Berlin: de Gruyter, 2017) Aurélien Djian 21. S. Centrone (Ed.), Essays on Husserl's Logic and Philosophy of Mathematics (Dordrecht: Springer, 2017) Filippo Costantini 22. Danilo Manca, Esperienza della ragione: Hegel e Husserl in dialogo (Pisa: Edizioni ETS, 2016) Agnese Di Riccio Part 7: In Memorium 23. Ronald Bruzina (1936-2019) Steven Crowell. Index