In the antebellum South, plantation physicians used a new medical device-the spirometer-to show that lung volume and therefore vital capacity were supposedly less in black slaves than in white citizens. At the end of the Civil War, a large study of racial difference employing th…
In the antebellum South, plantation physsicians used a new medical device - the spirometer - to show that lung volume and therefore vital capacity were supposedly less in black slaves than in white citizens. At the end of the Civil War, a large study of racial difference employi…
In the antebellum South, plantation physicians used a new medical device-the spirometer-to show that lung volume and therefore vital capacity were supposedly less in black slaves than in white citizens. At the end of the Civil War, a large study of racial difference employing th…
