This book aims to redress the balance in the field of Contemporary Philosophy, considered predominantly male, by highlighting the philosophical achievements of various female figures during the period 1870-1970. It was originally published in the British Journal for the History of Philosophy.

Sophia M. Connell is Senior Lecturer in Philosophy at Birkbeck College London. She held previous appointments in Cambridge. Her research includes ancient Greek philosophy and women in the history of philosophy. She is the author of Aristotle on Female Animals (2016) and the editor of The Cambridge Companion to Aristotle's Biology (2021).

Frederique Janssen-Lauret is Senior Lecturer in Philosophy at the University of Manchester, specializing in philosophical logic and history of analytic philosophy. She is author of Susan Stebbing (2022) and co-translator of Quine's Significance of the New Logic (2018).

Introduction-Lost voices: on counteracting exclusion of women from histories of contemporary philosophy 1. Worse than the best possible pessimism? Olga Plümacher's critique of Schopenhauer 2. Christine Ladd-Franklin on the nature and unity of the proposition 3. "It is quite conceivable that judgment is a very complicated phenomenon": Dorothy Wrinch, nonsense and the multiple relation theory of judgement 4. Margaret MacDonald's scientific common-sense philosophy 5. Margaret MacDonald and Gilbert Ryle: a philosophical friendship 6. Alice Ambrose and early analytic philosophy 7. The early work of Martha Kneale, née Hurst 8. Ruth Barcan Marcus and quantified modal logic 9. History of logic in Latin America: the case of Ayda Ignez Arruda