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ANSWERS TO EXERCISES ON THE CHART-Pages 97 to 103.

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ANSWERS TO EXERCISES ON THE CHART-Pages 97 to 103—Continued.

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ANSWERS TO EXAMINATION PAPERS.-Pages 104 to 107.

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Mer. Altitude--Lat. 55° 1′ 34′′ N. Parallel Sailing-D Long. 255.6 miles Mercator's Sailing

Co. S 2° 39' W. Dist. 5655 m. Tides-8h 47m A.M. and 9h 10m P.M. Amplitude-Error 22° 45′ W.

Deviation 4° 32' E.

Chronometer-Long. 70° 19′ 30′′ W.

Azimuth-Error 26° 38′ W.
Deviation 6° 38′ W.

Reduction-Lat. 50° 12' 30" N.
Star-Lat. 56° 1′ 4′′ N.

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Day's Work

Lat. 12° 12' N. Long. 179° 57′ W.
Co. N 28° E. Dist. 27 miles.
Mer. Altitude-Lat. 53° 30′ 47′′ N.
Parallel Sailing-D Long. 55 miles
Mercator's Sailing-Co. S 69° 49′ W.
Dist. 1043 miles.

Tides-No A.M., and oh 5m P.M.
Amplitude-Error 22° 58′ W.

Deviation 5° 58′ W.

Chronometer-Long. 93° 51′ 30" W.

Azimuth-Error 19° 41' E.

Deviation o° 39′ W.

Reduction-Lat. 29° 25′ 56′′ N.
Star-Lat. 21° 5' 2" S.
Deviation-

Cor. Mag. Bearing N 82° E.
Comp. Courses N 644° E. S 12° W.
S 68° E.

Cor. Mag. Courses N 87°W.

N 54° W. N 22° E.
Cor. Mag. Bearings N. 17° W.
S 840 E.

Sumner's Method

Ist obs. Long. 7° 44′ 15′′ W. and
7° 44' 30" W.

2nd obs. 8° 5' 0" W. and 7° 47' 0" W.
Line of Position North and South
Sun's Bearing East
Lat. 48° 14' N.

Chart

Long. 7° 52′ W.

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Mer. Altitude-Lat. 2° 40′ 46′′ N..
Parallel Sailing-D long. 47:58 miles
Mercator's Sailing—

Co. N 44° 21' E. Dist. 2713 miles
Tides-11h 44m A.M. No P.M.
Amplitude-Error 66° 11′ E.

Deviation 35° 51′ E. Chronometer-Long. 166° 28′ 0′′ E. Azimuth-Error 0° 24′ E.

Deviation 25° 36′ W.

By Burdwood's Tables, Dev. 26° 1' W. Reduction-Lat. 38° 45′ 33′′ S. Star-Lat. 19° 51′ 35′′ S.

Deviation

Cor. Mag. Bearing N 10° E.
Comp. Courses N 86° E. S 47° W.
S 47° E.

Cor. Mag. Courses N 82° W.
N 25° W. N 68° E.

Cor. Mag. Bearings West. S 11° W. Sumner's Method

1st obs. Long. 9° 25′ 45′′ W. and 10' 42' 30" W.

2nd obs. Long. 8° 53′ 30′′ W. and
9° 15′ 15′′ W.

Line of position N 67° 30′ W. and
S 67° 30′ E.

Sun's Bearing S 22° 30′ W.

Lat. 47° N. Long. 9° 11′ W.

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PAPER NO. IV.

Multiplication-44808000
Division-4116

Day's Work-
Lat. 2° 2′ N.

Long. 81° 48′ W.
Co. N 15° W. Dist. 192 miles
Mer. Altitude-Lat. 8° 33′ 23′′ N.
Parallel Sailing-D Long. 179.6 miles
Mercator's Sailing—Co. S 2° 21′ E.
Dist. 5550 miles

| Tides-11h 12m A.M. and 11h 38m P.M.
Amplitude-Error 14° 44′ E.

Deviation 5° 32′ W.
Chronometer-Long. 76° 5′ E.
Azimuth-Error 61° 43′ W.

Deviation 11° 0′ W.

By Burdwood's Tables, Dev. 11° 13′W,
Reduction-Lat. 73° 21′ 23′′ N.
Star-Lat. 39° 25′ 9′′ N.
Deviation-

Cor. Mag. Bearing N 43° W.
Comp. Courses S 76° E. N 61° W.
S 3° W.

Cor. Mag. Courses N 38° W.
N 50° E. S 58° E.

Cor. Mag. Bearings N 76° E. N 3° E. Sumner's Method

Ist obs. Long 10° 12' 30' W. and 10° 20' 30" W.

2nd obs. Long. 9° 29′ 45′′ W. and
9° 13′ 15′ W.

Line of position N 16° 53′ W. and
S 16° 53′ E.

Sun's Bearing N 73° 7' E.

Lat. 48° 24′ N.

Chart

Long. 9° 34′ W.

1. Comp. Co. N 80° E. Dist. 146 miles Var. 26° W. Dev. 20° W.

49' W.

Long.

2. Lat. 47° 0′ N.

32' W.

Long.

4. Comp. Co. S 5' W. Dist. 47 miles 5. Correction 3ft, to subt.

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3. Lat. 47° 54′ N. Long. — 37′ W. Dist. 17 miles

4. Comp. Co. N 62° E. Dist. 79 miles 5. Correction o-ft. 10-in. to subt.

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Dev. 15° 30' E.

By Burdwood's Tables, Dev. 15° 1' E.
Reduction-Lat. 40° 2′ 40′′ N.
Star-Lat. 8° 39′ 16′′ N.
Deviation-

Cor. Mag. Bearing-S 86° E.
Comp. Courses N 53° E. N 763° W.
N 34° W.

Cor. Mag. Courses N 69° E.

S 30° W. N 64 W.
Cor. Mag. Bearings N 17° E.
S 78° E.

Sumner's Method

1st obs. Long. 7° 27' 45" W. and

6° 56' 30" W.

2nd obs. Long. 7° 13' 0" W. and 8° 50' 0" W.

Line of Position N 36° 34' E. and

S 36° 34' W.

Sun's Bearing S 53° 26' E.

Lat. 46° 24' N.

Chart

1. Comp. Course Var. 26° W. 2. Lat. 47° 19' N. 3. Lat. 47° 37' N. Dist. 33 miles.

Long. 8° o' W.

N'38° E. Dist. 60 m.
Dev. 12° W.
Long. : o' W.

Long.

48' W.

4. Comp. Co. N 62° o' E. Dist. 30 m. 5. Correction 19ft. 8in. to subt.

Long. 179° 30' W. Dist. 150 miles

Lat. 40° 17' N. Co. N 91° E. Meridian Altitude-Lat. 2° 35' 12" S. Parallel Sailing-D Long. 34'06 miles. Mercator's Sailing-Co. S 48° 32′ W. Dist. 4704 miles Tides 11h 5m A.M. and 11h 30m P.M. Amplitude-Error 41° 24′ E.

Deviation 16° 24′ E.

Chronometer-Long. 151° 6' 0" E.
Azimuth-Error 55° 8' E. Dev. 29° 0' E.
By Burdwood's Tables, Dev. 29° E.
Reduction-Lat. 40° 27′ 53′′ N.
Star-Lat. 29° 31′ 15′′ S.

Deviation

Cor. Mag. Bearing S. 12° E.
Comp. Courses S 56° E. S. 75° W.
N 9° W.

Cor. Mag. Courses N 83° E.

N 76° W. N 10° E.

Cor. Mag. Bearings N 76° W. North Sumner's Method

Ist obs. Long. 6° 15′ 45′′ W. and
5° 15' 30" W.

2nd obs. 4° 42′ 15′′ W. and
8° 25' 15" W.

Line of Position N 45° E. and
S 45° W.

Sun's Bearing S 45° E.

Lat. 47° 47' N. Long. 6° 19′ W. Chart

1. Comp. Co. S 63° W. Dist. 135 m.
Var. 26° W. Dev. 27° E.
2. Lat. 47° 26' N. Long. 39′ W.
3. Lat. 47° 39' N.

Dist. 22 miles.

Long.

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49' W.

4. Comp. Co. S 30° W. Dist. 23 m. 5. Correction 3ft. 4in. to subt.

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