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)
aod the Zenith of the iin ,:,- 11- i\ana Alti- ••1 the Hor—Altitude and other similar• Ponraa of the (UipaesvI V, w. \. s, He placed of both (Hobee, each being 90 . They an snbdirided utb- 5° with the Cardinal Point*. hial an of - rtheaet, I. ie I rlohrs, <»r 8. ial parti each truuieui, adjusted… … pivot within it the magnetic needle—a piece of mag-netized iron always pointing to the North Pole. Thecompass has each of the arcs of 22^° subdivided, andhence instead of 16, it has 32 points. Our artificialGlobes have upon the inner rim of the Horizon, the samedivision of 32 points of the Compass.…
Astronomy
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