In her compulsively readable biography on acclaimed scientist Maria Mitchell, Renée Bergland reminds us of the intellectual women from the 19th century whose crucial roles in the philosophical, social, and scientific debates that roiled the era have not been fully examined. Among them is the astronomer Maria Mitchell. Bergland chronicles the ideological, academic, and economic changes that led to the original sexing of science—now so familiar that most of us have never known it any other way.