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21
EXEMPLIFICATION AND CONSTRUCTION OF THE PRECEDING
TABLES.
TO JTIND THE TIME OF HIGH WATER AT ANY PLACE IN THE GENERAL TIDE TABLE.
Rule. — To the time of high water at Glasgow on the given day, add or subtract
the correction for the required place as stated in the table, and the time of high water
will be obtained. When the sum of the correction and of the time of high water in
the table exceeds 12 hours, subtract 12 hours, and the remainder will be the time of
high water in the morning or evening of the given day, as the column denotes ; when
the sum of the former quantities is less than 12 hours, this sum will be the time of
high water required in the evening of the preceding day, or the morning of the given
day, according as the column is marked morning or evening. Or the morning and
the evening tides may be found thus : — If the morning tide be sought, and the sum be
above 12 hours, take the time from Glasgow for the preceding evening, to which add
the correction for the required place, from the sum subtract 12 hours, and the re-
mainder is the morning tide at the place required. If the evening tide is wanted, and
the sum exceed 12 hours, take the Glasgow morning tide for the given day, to which
apply the correction for the required place, from the sum subtract 1 2 hours, and the
remainder is the evening tide at the place required.
Required the time of high water at Peterhead, 9th May, 1855.
Time of high water, evening, 9th May, at Glasgow, 7 h. 25 m.
Correction for Peterhead, 1
High water at Peterhead, evening, 9th May, 6 23
High water, 9th May, 1855, at London Bridge, 7 h. 45 m.
Correction for Glasgow, 20
High water, evening, 9th May, at Glasgow, 7 25
High water at Glasgow, 12th May, 1855, p.m., 11 h. 19 m.
Correction for Liverpool, 9 45
21 4
Subtract 12
High water at Liverpool, 12th May, p.m., 9 4
On 17th May, 1855, the sun's longitude was 55° 59', and obliquity of the
ecliptic 23° 28'. Required the sun's declination.
To log sine of sun's longitude at noon, 55° 59', 9-918489
Add log sine of obliquity of ecliptic, 23° 28', 9-600118
Log sine of the sun's declination, 19° 16', 9-518607
EXEMPLIFICATION AND CONSTRUCTION OF THE PRECEDING
TABLES.
TO JTIND THE TIME OF HIGH WATER AT ANY PLACE IN THE GENERAL TIDE TABLE.
Rule. — To the time of high water at Glasgow on the given day, add or subtract
the correction for the required place as stated in the table, and the time of high water
will be obtained. When the sum of the correction and of the time of high water in
the table exceeds 12 hours, subtract 12 hours, and the remainder will be the time of
high water in the morning or evening of the given day, as the column denotes ; when
the sum of the former quantities is less than 12 hours, this sum will be the time of
high water required in the evening of the preceding day, or the morning of the given
day, according as the column is marked morning or evening. Or the morning and
the evening tides may be found thus : — If the morning tide be sought, and the sum be
above 12 hours, take the time from Glasgow for the preceding evening, to which add
the correction for the required place, from the sum subtract 12 hours, and the re-
mainder is the morning tide at the place required. If the evening tide is wanted, and
the sum exceed 12 hours, take the Glasgow morning tide for the given day, to which
apply the correction for the required place, from the sum subtract 1 2 hours, and the
remainder is the evening tide at the place required.
Required the time of high water at Peterhead, 9th May, 1855.
Time of high water, evening, 9th May, at Glasgow, 7 h. 25 m.
Correction for Peterhead, 1
High water at Peterhead, evening, 9th May, 6 23
High water, 9th May, 1855, at London Bridge, 7 h. 45 m.
Correction for Glasgow, 20
High water, evening, 9th May, at Glasgow, 7 25
High water at Glasgow, 12th May, 1855, p.m., 11 h. 19 m.
Correction for Liverpool, 9 45
21 4
Subtract 12
High water at Liverpool, 12th May, p.m., 9 4
On 17th May, 1855, the sun's longitude was 55° 59', and obliquity of the
ecliptic 23° 28'. Required the sun's declination.
To log sine of sun's longitude at noon, 55° 59', 9-918489
Add log sine of obliquity of ecliptic, 23° 28', 9-600118
Log sine of the sun's declination, 19° 16', 9-518607
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| Scottish Post Office Directories > Towns > Glasgow > Post-Office annual Glasgow directory > 1854-1855 > (45) |
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| Permanent URL | https://digital.nls.uk/84119612 |
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| Description | Post-Office annual Glasgow directory 1854-1855 |
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| Shelfmark | NH.675-676 |
| Additional NLS resources: | |
| Attribution and copyright: |
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More information
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| Description | Glasgow : Printed by J. Graham for the letter-carriers of the Post-Office, 1828-? Imprint and title vary. [Varying forms of title: Glasgow Post-Office directory, Glasgow Post-Office annual directory, Post Office Glasgow annual directory.] |
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| Shelfmark | Various |
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More information
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| Description | Directories of individual Scottish towns and their suburbs. |
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| Description | Around 700 Scottish directories published annually by the Post Office or private publishers between 1773 and 1911. Most of Scotland covered, with a focus on Edinburgh, Glasgow, Dundee and Aberdeen. Most volumes include a general directory (A-Z by surname), street directory (A-Z by street) and trade directory (A-Z by trade). |
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