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When Bryn Mawr College opened in 1885, then-president James Rhoads highlighted the precautions taken to ensure that the young women students would remain healthy, in reaction to the publicized warnings of Scottish physician Thomas S. Clouston, M.D. Dr. Clouston's concern that girls' higher education would damage their health epitomized a growing anxiety around the status of wives and mothers at a time of increased educational opportunities for the so-called 'fairer sex'. To counter these opinions, college alumnae and administrators turned to statistics. Through a combination of published statistics and informal anecdotes, this article provides an in-depth study of how marriage data were solicited, tabulated, and framed at Bryn Mawr College during the Progressive Era, contributing a detailed case-study to the historiography on the period's debates over educated women. The tension between marriage and a career in research was acutely apparent to the women in academia who were at once responsible for the statistical analysis and among the subjects under investigation. While the survey design and published results emphasized the desired outcome of marriage after graduation, these same documents also offered space for emerging professional trajectories., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)

A plagiarism charge in 1827 sparked a public controversy centered between Jean-Victor Poncelet (1788-1867) and Joseph-Diez Gergonne (1771-1859) over the origin and applications of the principle of duality in geometry. Over the next three years and through the pages of various journals, monographs, letters, reviews, reports, and footnotes, vitriol between the antagonists increased as their potential publicity grew. While the historical literature offers valuable resources toward understanding the development, content, and applications of geometric duality, the hostile nature of the exchange seems to have deterred an in-depth textual study of the explicitly polemical writings. We argue that the necessary collective endeavor of beginning and ending this controversy constitutes a case study in the circulation of geometry. In particular, we consider how the duality controversy functioned as a medium of communicating new fundamental principles to a wider audience of practitioners.