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What place is in longitude o', and latitude 31° 31'?

What city is situated 2° 25' east, and 48° 50 north?

What city is in 30° 24′ east, and 59° 56′ north?

What island is situated in 149° 35' west, and 17° 29' south?

What island is situated in 5° 44′ west, and 15° 55′ south?

Lord Rodney beat the French fleet in longitude 62° west, and latitude 14° north, make a dot where it happened.

PROBLEM V.

To find the Bearings of Places.

Solution. If there be a compass on a moveable meridian, fix its center over the given place, and it will point out the bearings of the neighbouring countries; or, bring the place

into the zenith, by elevating the pole to the latitude of it, then fix on the slender brass plate, called the quadrant of altitude, over the place and let it lie projecting over any neighbouring country, and it will then also hang over the compass on the horizon, and point out the bearing.

Example. Which way lies Paris from London?

Petersburgh from London ?

Dublin from London?

How does Dresden bear from Warsaw ?

Which way lies Canton from Batavia?

In what point of the compass lies Havannah from Jamaica?

PROBLEM VI.

To point with the Finger to any Town or Country.

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Solution. By the compass place the fixed meridian north and south, observing to give the needle at London 24° westerly variation;

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then bring the place into the zenith, as before directed, and the finger will easily point out which way every neighbouring city lies. Example.-Point with your finger to Rome.

Which way lies Glasgow?

Which way do I sail to New York?

Which way should the wind blow to sail from the Land's End into the St. Lawrence?

What winds would carry me to Copenhagen?

What winds would carry me to Venice?

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What winds would carry me to Bengal ?

PROBLEM VII.

To find the Antipodes to any given Place.

Rule-Bring the place into the zenith, by elevating the pole to the latitude of the place. Keep the globe steady; and at the same latitude, on the night part of the meridian is the Antipode to the place sought.

Example. Make a spot on the place immediately under London.

What place is on the opposite side of the globe to Pekin?

What place is Antipode to Tobolski?

PROBLEM VIII.

To rectify the Globe.

Rule. See in what sign and degree of the ecliptic the sun is for the given day, on the table pasted on the horizon, or in the Nautical Almanac. This found, seek for the same sign and degree in the ecliptic on the globe, bring that to the meridian with your nail, the meridian will then shew you the sun's latitude, or what is generally called his declination. Now, whatever number of degrees the sun is from the equator north or south, he will shine the same number of degrees over the nearest pole; for as his light will reach 90° every way from the place where he is vertical, and as it is 90° from the equator to either pole, therefore if he be 10o north of the equator, he must shine 10° over the north pole; to exhibit this, the north pole must be elevated 10° above the horizon: This is called, rectifying the globe for the sun's place; and the brass meridian. being turned north and south is all the rectification I ever use, because of its simplicity, and its putting the earth into that natural

position in which it stands to the sun at all or any given times.

Example.-How stands the earth to the sun on the 10th of October?

How far does the sun shine vertically from the equator on the 20th April?

How far does the sun shine over the north pole on the 21st June? :

What is the sun's declination on the 6th November?

What is the sun's latitude on the 21st December?

What is the sun's latitude on the 21st March?

PROBLEM IX.

The Day of the Month, and hour of the Day given, to find in what Countries the Sun is rising and where setting; and where it is Noon, Midnight, &c. at that Time.

Rule. Rectify the globe for the day; then turn the place to the hour; (by Prob. IV.)

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