Compare particularly the photographs of August 14th and August 18th, where the spots are least distorted by the curvature of the sun's surface.
"A Text-Book of Astronomy"
George C. Comstock
The pale blue eyes of the Englishman softened abruptly, and the lips under the short-clipped moustache changed from their stiffness to the curvature of something like a smile.
"The Tempering"
Charles Neville Buck
It was a promontory washed by the Patapsco on one side, and a curvature of the bay itself on the other.
"The Campaigns of the British Army at Washington and New Orleans 1814-1815"
G. R. Gleig