OF THE GLOBES.
383
PROBLEM XLIII.
To make an erect dial, declining from the south
towards the eaſt or west.
Elevate the pole to the latitude of the place,
and screw the quadrant of altitude to the zenith.
Then if your dial declines towards the east,
(which we ſhall suppose in the present instance)
count in the horizon the degrees of declination,
from the east point towards the north, and bring
the lower end of the quadrant to coincide with
that degree of declination at which the reckoning
ends.
Then bring the first meridian under the graduated ¬
edge of the strong brazen meridian, which
strong meridian will be the horary index.
Now turn the globe westward, and observe the
degrees cut in the quadrant of altitude by the first
meridian, while the hours XI, X, IX, &c. in
the forenoon, pass successively under the brazen
one ; and the degrees thus cut on the quadrant by
the first meridian, are the respective distances of
the forenoon hours, from XII, on the plane of
the quadrant.
For