Inside Out Library
A primary astronomy .. (1851)
Mattison, Hiram, 1811-1868 · New York, Huntington and Savage, Mason and Law · leaf 19
r will run over in the middlebefore the ends are full. * Con-vex-i-ty, swelling toward a globular form; roundness. ■{■ It would be well, where there is time, during recitation, for somemember of the Class to draw this and similar figures used for illustrationupon the Blackboard, and explain the… … MM©- ROTUNDITY OF THE EAKTH. [In the cut, the top of the aqueduct is perfectly flat; but the water, on being let in,conforms to the general figure of the globe, swells upward in the middle, and runsover. This proves the surface of the water to be convex. The amount of this con-vexity is found to be…Astronomy
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