Astronography, or, Astronomical geography, with the use of globes : arranged either for simultaneous reading and study in classes, or for study in the common method (1854)
ether or not the Earth is aperfect Sphere ? What kind of Sphere is it ?—9. What are thetwo equal parts or halves of Spheres called ? What are GreatCircles of Spheres? What are Lesser Circles? What threethings belong to every circle ?—10. How may the circumference,plane, and centre of a circle be… … 11. Tl V an<l DiomtUr of any Great and diameter ofthat 5 uneter may be termed an ra; farif about which it might revolfo, if there i m| it in motion. Any axis of a • ■ and Polei eonn<with that axis may be (bond. For the meeting of theaxis with I two opposite points of the Sphere 68 of that…
Astronomy
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