Required the difference of longitude between the following places, both in degrees and in time.

3. Contantinople and Pekin?

4. Otaheite and Tongataboo, in the Pacific Ocean? 5. London and Quebec?

6. Acapulco, on the west coast of America, and Macao, in China?

7. Port Sir Francis Drake, in America, and Nankin, in China?

8. Pico, one of the Azores, and Botany Bay?

9. Vera Cruz, on the Gulf of Mexico, and Siam, in the farther Peninsula of India?

10. Bergen and Bombay?

11. Bermudas Island and Island of Rhodes?
12. Mount Heckla and Mount Vesuvius?
13. Constantinople and Batavia?

14. Juan Fernandez and New Caledonia ?

15. Easter Island and Tongataboo, one of the Friendly Islands?

16. Marquesas and Navigators' Islands?

17. Christmas Island and the Pelew Islands?

18. Owhyhee and the Ladrone Islands?

19. Oonalashka, on the north-west coast of America, and Jesso, on the north-east coast of Asia?

EXAMPLES EOR A MAP OF EUROPE AND ASIA. What is the difference of longitude between the following places?

Sea-ports in Europe.

20. Gibraltar and Barcelona? 24. Corinth & Akerman ?

To find all those places that have the same latitude with a

given place.

BY THE GLOBE.

1. Bring the given place to the brass meridian, and observe the latitude.

2. Turn the globe round, and all places that pass under the latitude will be those required.

BY MAPS.

1. If a parallel of latitude be drawn through the given place, then observe all those places which lie on this parallel.

2. If a parallel do not pass through the given place, with a pair of compasses take its distance from the nearest parallel: move the compasses in this position, keeping one foot on the parallel, and all those places over which the other point passes have the same latitude with the given place.

The variety of the seasons, and the difference of the lengths of the days and nights, depending upon the difference of latitude, all places that have the same latitude, have their seasons exactly alike, except what difference may arise from the local situation of the place: they have also the days and nights of the same length at the same time; but the hours of the day are different.

BXAMPLES.

1. What places have nearly the same latitude with Stockholm?

Answ. Petersburgh; Vologda; Narym and Okhotsk, in Asia; Lake Athapescow; Churchill Fort, on Hudson's Bay; Cape Chidley, in Labrador; Cape Farewell, in Greenland; and Mainland, one of the Shetland Islands.

2. What places have nearly the same latitude as Edinburgh?

Answ. Elsinore, on the Sound; Memel, Polotsk, and Moscow, in Europe; Casan and Tomsk, in Asia; Bherring's Island; and Alashka and Severn-House, in America.

What places have nearly the same latitude as the follow

To find all those places that have the same longitude with a given place.

BY THE GLOBE.

Bring the given place to the brass meridian, and mark all those places then under the meridian, for the answer required.

BY MAPS.

Find the longitude of the given place; then observe all those places that are upon the same meridian, or that are situated at the same distance from the nearest meridian with the given place.

All those places that have the same longitude, have noon and midnight, and the other hours of the day, exactly at the same time,

EXAMPLES.

1. What places have nearly the same longitude as London?

Answ. Poictiers, in France; Valencia and Alicant, in Spain; Oran, in Barbary; and Cape Coast, in Guinea.

2. What places have nearly the same longitude as Genoa? Answ. Christiansand, Bremen, Berne, Corsica, Sardinia, and Tunis?

What are the places whose longitude is nearly the same as that of the following places?

QUESTIONS FOR EXERCISE IN SECTION I.

What are the latitudes and longitudes of,