Contours of a half sphere

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“The contours of a half sphere are a series of circles, far apart near the center (top) and near together at the outside (bottom), showing that the slope of a hemisphere varies at all points, being nearly flat on top and increasing in steepness near bottom.” — Moss, 1914




James A. Moss Manual of Military Training (Menasha, WI: George Banta Publishing Company, 1914) 483


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