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4. 1865, August 12th, in longitude 92° 12′ E., observed meridian altitude sun's L.L. bearing North was 42° 42' 10", index correction

quired the latitude.

2' 50", height of eye 17 feet: re

5. In latitude 56° 11' S., the departure made good was 356 miles East: required the difference of longitude by parallel sailing.

6. Required the course and distance from A to B, by Mercator's sailing.

Latitude of A 47' 50'S.

Latitude of B 40 49 S.

Longitude of A 42° 16′ E.
Longitude of B 46 25 E,

ADDITIONAL FOR ONLY MATE.

7. 1865, August 17th, required the times of high water at Liverpool Dock, A.M.

and P.M. and also at Dungeness.

7a, 1864, August 25th, find A.M. and P.M. tides at Cardiff and Lundy Island, 76. August 21st, find A.M. and P.M. tides, long 70° E., change tide 2h 7m.

8. 1865, August 1st, at 6h 57m P.M. apparent time at ship, latitude 37° 3′ N., longitude 105° 49′ E., sun's magnetic amplitude N.W. by W. W.: required the variation.

9. 1865, August 7th, P.M. at ship, latitude 6° 4' N., observed altitude sun's L.L. 24° 5′, index correction + 1' 30", height of eye 12 feet, time by chronometer 6d 20h 10m 36s, which was 20m 10s slow for Greenwich mean noon, July 21st, and losing 6s 6 daily: required the longitude.

D D

ADDITIONAL FOR FIRST MATE.

10. 1865, August 20th, mean time at ship 2h 35m 25s P.M., latitude 52° 2′ S., longitude 89° 26′ E., sun's bearing by compass N. W., the observed altitude of sun's L.L. 17° 26', index correction + 1'45", height of eye 21 feet

variation.

required the

11. 1865, August 11th, A.M. at ship, latitude account 39° 3′ S., longitude 157° 25′ E., observed altitude sun's L.L. North of observer was 34° 37', height of eye 12 feet, time by watch 10d 19h 41m 25*, which had been found to be 3h 41m 8s slow on apparent time at ship, the difference of longitude made to the East was 33', after the error on apparent time was determined.

ADDITIONAL FOR MASTER ORDINARY.

12. 1865, August 20th, the observed meridian altitude of the star a Aquila (Altair) bearing North, was 66° 51′ 10′′, index correction + 58", height of eye 13 feet: required the latitude.

13. Correct the following compass courses for deviation, as given in page 73 :— W. S., N.W.N.

EXAMINATION PAPER.-No. IX.

FOR SECOND MATE. 1. Multiply 1368 by 84, by common logarithms. 2. Divide 138876 by 426, by common logarithms.

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4. 1865, September 22nd, in longitude 123° 45′ W., the observed meridian altitude of sun's L.L., bearing North, was 89° 49′ 50′′, index correction +52", height of eye 26 feet: required the latitude.

5. In latitude 20° 15′ S., the departure made good was 352 miles West: required the difference of longitude by parallel sailing.

6. Required the course and distance from A to B, by Mercator's sailing.

Latitude of A 25° 39′ N.

Latitude of B 34 28 S.

Longitude of A 48° 19′ W.

Longitude of B 18 28 E.

ADDITIONAL FOR ONLY MATE.

7. 1865, September 14th, find the times of high water at Swansea, Cork, Donegal Bar, Dungarvon, and Fowey, A.M. and P.M.

7a. 1864, September 14th, find A.M. and P.м. tides at Alderney and Cherbourg. 76. 1865, September 14th, longitude 89° W.: find A.M. and P.M. tides at A, change tide 4h 50m apparent time (Method III).

8. 1865, September 19th, at 6h 3m A.M. apparent time at ship, latitude 35° 36′ S., longitude 36° 38′ W., sun's magnetic amplitude East: required the variation.

9. 1865, September 1st. P.M. at ship, latitude 9° 9' N., observed altitude sun's L.L. 62° 13′ 14′′, index correction + 15′′, height of eye 16 feet, time by chronometer, August 31d 15h 16m 28s, which was 20m 123 slow for Greenwich mean noon, July 28th, and gaining 26 daily.

ADDITIONAL FOR FIRST MATE,

10. 1865, September 16th, mean time at ship 8h 3m 18s A.M., latitude 4° 22′ N., longitude 81° 39′ W., sun's bearing by compass N. 81° 20′ E., the observed altitude sun's L.L. 29° 30′ 30′′, index correction + 1′ 22′′, height of eye 20 feet: required the true azimuth and variation.

11. 1865, September 23rd, A.M. at ship, latitude account 27° 32′ S., longitude 168° 51′ E., observed altitude sun's L.L., North of observer, was 61° 59′ 40′′, index correction 1' 50", eye 18 feet, time by watch 22d 23h 10m 10s, which had been found to be 31m 31s slow on apparent time at ship, difference of longitude since made to East was 20'4 miles.

ADDITIONAL FOR MASTER ORDINARY.

12. 1865, September 7th, the observed meridian altitude of the star Arcturus was 86° 35′ 50′′, bearing North, index correction 1' 10", eye 12 feet.

13. Correct the following compass courses for deviation, as given at page 73 :— N. E. and E. by S. 1 S.

EXAMINATION PAPER.-No. X.

FOR SECOND MATE.

1. Multiply 33'9 by 56'7, by common logarithms. 2. Divide 8491-92 by 98.4, by common logarithms.

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4. 1865, October 20th, in longitude 150° 25′ W., the observed meridian altitude of sun's L.L., bearing North, was 49° 58′ 50′′, index correction + 1' 10", eye 19 feet: required the latitude.

5. In latitude 22° 22′ N, the departure made good was 222.2 miles East: required the difference of longitude.

6. Required the course and distance from A to B, by Mercator's sailing.

Latitude of A 9° 36' S.

Longitude of A 2° 10′ W.

Latitude of B 7 16 S.

Longitude of B 1 24 E.

ADDITIONAL FOR ONLY MATE.

7. 1865, October 13th, find the times of high water at Falmouth, Eyemouth, Dunkerque, and Orfordness, A.м, and P.M.

7a. 1864, October 11th, find A.M. and P.M. times of high water at Calcutta, longitude 88° E. (Method II.)

76. 1865, October 30th, find A.M. and P.M. times of high water at A, longitude 92° E., change tide 4h 10m (Method III).

8. 1865, October 9th, at 5h 51m A.M. apparent time at ship, latitude 18° 45′ S, longitude 99° 18′ E., sun's magnetic amplitude E. & S.: required the variation.

9: 1865, October 30th, A.M. at ship, latitude 12° 53′ S., observed altitude of sun's L.L. 28° 45′ 50′′, index correction + 30", eye 20 feet, time by chronometer 30d 4h 6m 8a, which was 10m 128 fast for Greenwich mean noon, July 17th, and gaining 557 daily.

ADDITIONAL FOR FIRST MATE.

10. 1865, October 1st, mean time at ship 4h 54m P.M., latitude 17° 8' S., longitude 152° 33′ E., sun's bearing by compass W. 3 S., observed altitude of sun's L.L. 13° 59′,

index correction — 22′′, eye 17 feet: required the variation.

11. 1865, October 2nd, a.m. at ship, latitude by account 38° 12′ N1, longitude 23° 34′ W., observed altitude of sun's L.L., South of observer, 47° 30', index correction 1' 38", eye 17 feet, time by watch 2d 1h 50m, which had been found to be 2h 10m fast on apparent time at ship, difference of longitude made to East was 43 miles.

12.

ADDITIONAL FOR MASTER ORDINARY.

1865, October 7th, the observed meridian altitude of the star a Pegasi (Markab) was 54° 10′ 15′′, bearing South, height of eye 13 feet: required the latitude.

13. Correct the following courses for local deviation, as given at page 73:N.W. W., N. by E. E., N. W., and N.E. E.

EXAMINATION PAPER.-No. XI.

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