I hadn't been aware that there were doors closed to me until I started knocking on them. I went to an all-girls school. There were 75 chemistry majors in that class, but most were going to teach it ... When I got out and they didn't want women in the laboratory, it was a shock . . . It was the Depression and nobody was getting jobs. But I had taken that to mean nobody was getting jobs . . . [when I heard] 'You're qualified. But we've never had a woman in the laboratory before, and we think you'd be a distracting influence,' I almost fell apart.