APPENDIX III.

Answers to the Exercises for the Extra Examination.

dec.

2.

3.

4.

('s hor. par. 61' 19"
Sid. T. ship 3h 3m 40s:
3rd cor : +1′ 21′′
O's dec. S. 17° 36′ at mid. time.-Lat. 40° 18'S.
Lat, 40° 11′ S. assuming Lats. 39° 30 and 40° 30′.

PAPER I-p. 108.

18° 52′ 30′′N.: Lat. 48° 7' 37"N.
1st cor.-1° 13′52′′: 2nd cor. + 14s
Lat. 43° 52′ 3′′N.

Eq. of equal alts. —6·3$ : chron. fast on S.A.T. 1h 3m 2.7s: fast on S. M. T. 1h 15m 174s: and slow for G. M. T. 38m 25s.

's hor. par. 54' 34" true dist. 70° 20′ 36′′— G. M. T. 15h 24m8s Long. 95° 10′ 30′′E.: error of chron. 4m 3s slow. True altitude 43° 14′ 46′′.

Drift 18 miles: Set N. 771°E.

PAPER II.--p. 109.

1.

2.

D's cor hor. par. 54' 28" dec. 18° 8' 32"S.: Lat. 21° 36′59′′N.
Sid. T. obs. 7h 11m 1st cor. 22" 2nd cor.
: + 1' 28"
3rd cor. 55" Lat. 54° 48′ 24′′N.

3.

O's dec. at mid. time 4° 59′N. Lat. 30° 5' N.

4.

Lat. 30° 6' N. assuming Lats. 29° 30′ and 30° 30'.

5.

fast on M. T. S. 6h 35m 27s;

6.

's hor par. 59′ 25′′:

true dist. 109° 49′ 22′′: G. M.T. 5h

Eq. of equal alts. -2s5: chron. fast on A. T. ship 6h 35m 37s 5:

slow for G. M. T. 4m 13s.

20m 50s.. Long. 30° 11′ W.: error of chron. 5m 44s fast for

1.

12

PAPER III.-p. 110.

D's cor. hor. par. 57′ 10′′: dec. 7° 17′ 53′′S.: Lat. 44° 45′ 39′′S. 2. Sid. T. obs. 14h 36m 56s: 1st cor. + 1° 18′ 1′′: 2nd cor. +11":

3rd cor. + 54′′: Lat. 51° 10′ 38′′N.

4.

Lat. 3° 36′ 38′′N. : assuming lats. 3° 1′ and 4° 1′. N.

5.

6.

Eq. of equal alts. + 6s chron. fast on S. A. T. 1h 58m 56s fast
on S. M. T. 2h 2m 47s: fast for G. M. T. 7m 23s.
D's hor. par. 58′ 25′′: Stars app. alt. 60° 17′ 41′′: true dist. 78°
6′ 57′′: G. M. T. 17d 11h 0m 1s: M. T. ship. 17d 19h 22m
10.2: Long. 125° 32′ 18′′E. : chron. slow 2m 49s on G. M. T.
True alt. 49° 7′ 40′′

7.

8.

Set S. 79° W. drift 60 miles.

1.

2.

PAPER IV. p. 111.

D's hor. par. 57′ 56′′: dec. 13° 15′ 7′′N. Lat. 18° 2′ 50′′S.
Sid. T. obs. 19h 9m 29s 1st cor. +11": 2nd cor. + 1' 52′′: 3rd
cor. + 1' 24": Lat. 60° 55′ 47′′N.

Lat. 10° 10′ 48′′N.

Lat. 10° 10′ 57′′N.: assuming Lats. 9° 50′′ and 10° 30'.

4.

5.

Eq. of equal alt. +6 13: chron. slow on S. A.T. 1h 24m 23. 9s : slow on S. M.T: 1h 30m 5s 4: slow for G. M. T. 29m 18.4.

6.

's hor. par. 54′ 23′′: true dist. 67° 24′ 54′′: G. M. T. 27d 23h 20m 0s Long. 161° 56′ 51′′E. M. T. S. 28d 10h 7m 47s 4. True alt, 49° 34′ 27′′.

7.

8.

Set N. 65°E: drift 93 miles.

PAPER V. p. 112.

D's cor. hor. par. 57′ 51′′: dec. 17° 43′ 11′′N. : Lat. 21°26′ 59′′S.
Sid. T. obs. 1h 48m 12s 1st cor. -1° 22′ 49′′: 2nd cor. +3′′ : 3rd

cor. +1'12": Lat. 52° 33′ 11′′N.

O's dec. at mid. time 13° 44′ 57′′ S. : Lat. 40° 44′ 0′′ S.

Lat. 40° 41′ 32′′S. : assuming Lats. 40° 20′ and 41° 0′.
Eq. equal alts. -9s7: chron, slow on S. A.T. 2h 34m 19s⚫7 : slow
on S. M. T. 2h 22m 57s: fast for G. M. T. 5h 17m 27s.

D's hor. par. 54'41": ('s app. alt. 30° 58′ 34′′: true dist. 83° 6′ 7"
G. M.T. 22d 6h 35m 59s: Long. 45° 28′ 15′′W. : chron. slow

on G. M. T. 7m 39s.

True altitude 32° 51' 3".

Set N. 35°W. drift 107 miles.

PAPER VI. p. 113.

D's cor. hor. par. 57' 34": dec. 11° 35′ 6′′S.: Lat. 25° 29′25′′S.
Sid. T. obs. 2h 49m 33s7: 1st cor. -1° 16′ 12′′ : 2nd cor. + 17":

3rd cor. + 1' 31": Lat. 54° 59′ 15′′N.

3.

O's dec. 23° 7′ 20′′S. at mid. time: Lat. 52° 28′ 5′′S.

7.

8.

Set N. 20°E. drift 32 miles : rate per hour 1.3 mile.

D's hor. par. 54′ 16′′

:

fast on G. M. T. 7h 8m 19s.

Long. 30° 2' 15"W. : chron. fast on G M. T. 2m 9s.
True altitude 40° 7' 48"

true dist. 54° 22′ 13′′: G.M.T. 4h 20m 8s

POPLETT, PRINTER, 43, BEECH STREET, CITY.

TABLE I.

EXTRACTS FROM THE NAUTICAL ALMANACK FOR 1868,

Воок.

Required in working the QUESTIONS in the HAND BOOK.

The signs and applied to the Equation, indicate that the corrected Equation of Time, is to be added to or subtracted from Apparent Time.