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AMERICAN ANTI-SLAVERY ALMANAC.

For the calculations of this Almanac we are indebted to the Christian Almanac for 1842.
NOTE.-- Use the Calendar under the State in which you reside, and the corresponding column of Moon's Phases at the top of the page, and no calendar can be more simple or convenient.

Eclipses in 1842.

I. THREE ECLIPSES OF THE SUN-- At the time of New Moon, in January, July, and December, all invisible in the United States.  (1.) Jan. 11, annular at the south pole; visible in South Africa; central and annular in long. W. from Greenwich, 57°; S. Lat. 88° 41'.  (2.) July 8, will be central and total E. long.  77° 27', N. lat. 51° 47', and pass central and total through Europe and Asia.  At London, 9.61 digits eclipsed on sun's south limb.  (3.) Dec. 31, visible throughout South America and New Zealand; central and annular, W. long. 104° 21', S. lat. 33° 18'.
II. TWO ECLIPSES OF THE MOON.--(1.) Jan 26, at the time of the Full Moon, invisible to America; visible in nearly the whole Eastern hemisphere.  (2.) Eclipse of the Moon on Friday, July 22, morning; invisible at Boston and New-York, but visible as follows:

[[6 column table]]

| PLACES. | Beginning. | Middle.  | Moon Sets. | Duration of visibility. | Digits Ecl'd at setting. |

|[blank]| H.M. |  H.M. |  H.M. |  H.M. | [blank]|
| Detroit, | 4 14 | --- | 4 44 | 0 30 | 2.38 |
| Philadelphia, | 4 44 | --- | 4 49 | 0 05 | 0.45|
| Baltimore, | 4 38 | --- | 4 51 | 0 13 | 1.08 |
| Pittsburgh, | 4 25 | --- | 4 49 | 0 24 | 1.97 |
| Charleston, | 4 25 | --- | 5 08 | 0 43 | 2.96 |
| Cincinnati, | 4 07 | --- | 4 53 | 0 46 | 3.06 |
| Nashville, | 3 58 | 5 01 | 5 01 | 1 03 | 3.45 |
| Mobile, | 3 51 | 4 54 | 5 14 | 1 23 | 3.08 |
| St. Louis, | 3 45 | 4 48 | 4 55 | 1 10 | 3 35 |
| New Orleans, | 3 44 | 4 47 | 5 16 | 1 32 | 2.67 |
| Natchez, | 3 39 | 4 42 | 5 12 | 1 33 | 2.62 |
Magnitude of the Eclipse at the middle, 3.456 digits on the southern limb.

The Calendar page in this Almanac is adapted for use in every part of the United States.  It is based on the fact, that, in the same Latitude, that is, on a line running due East and West, the Sun and Moon rise and set at the same moment by the clock or Almanac, not only throughout the United States, but around the world-- the variations being so small as to be of no importance for ordinary purposes.  Thus, if on any day the sun rises at Boston at five minutes past six, it rises at five minutes past six on the same line of latitude westward throughout the States of Massachusetts, New-York, and Michigan, and so on to the Pacific Ocean.

Hence, a Calendar adapted to Boston for New-England, is equally adapted, as to the rising and setting of the sun and moon, for use in Northern New-York and Michigan.  A Calendar for New-York city is adapted for use in the States of Pennsylvania, Ohio, Indiana, and Illinois.  A Calender for Baltimore is adapted for Virgina, Kentucky, and Missouri. And a Calendar for Charleston will answer for North Carolina, Tennessee, Georgia, Alabama, and Louisiana.

Wherever, then, the reader may reside, by looking for the State at the top of the Calendar page, he will find underneath the rising and setting of the sun and moon sufficiently accurate for all practical purposes.

The changes, fulls, and quarters of the Moon, however, are governed by another principle, and are essentially the same for all places on the same Longitude, that is, on any line extending due north and south.  Thus, the moon's phases for Charleston suit Pittsburgh, &c.  Any phasis takes place at the same time instant of absolute

AMERICAN AN-TI SLAVERY ALMANAC.

time; but the local time is earlier at the westward, and later at the westward, at the rate of four minutes for each degree of Longitude; or at the rate of one minute for every 12 miles 273 rods in the latitude of Boston; 13 miles 60 rods in the latitude of New-York city; 13 miles 143 rods in the latitude of Baltimore; and 14 miles 199 rods in the latitude of Charleston.

The Sun's declination, as masters of coasting vessels will observe, is adapted in this calendar to the meridian of New-York city.  The declination varies most rapidly about the tie of the equinoxes; but even then, it changes but 1' while the sun is passing from the meridian of New-York to that of New Orleans or St. Louis.  The column of sun's declination is therefore designed, like the days of the week and month, for general use throughout the country.

CLOCK TIME.

This Almanac shows the rising and setting of the Sun, &c. according to a clock that keeps accurate time throughout the year.  As the Sun is sometimes fast or slow of clock, the forenoon will of course be, by clock, so much longer or shorter than the afternoon.  Some observing this, think they have found an error in the Almanac; but it is no error.  The table, "Sun on the Meridian," at the head of the Calendar pages, shows at what moment the Sun, according to a true clock, is on the meridian, or strikes an accurate noon-mark.  The London Nautical Almanac, and a large portion of the Almanacs in our country, are now adapted to true, or clock time.

Chronological Cycles.

[[2 column table]]

| Dominical Letter, B. 
Golden Number, or Lunar Cycle, 19.
Epact, 18. |
| Solar Cycle, 3.
Roman Indiction, 15. 
Julian Period, 6555. |

Characters. 
[[image]] [[Astrological sun symbol]] Sun, [[image]] [[Astrological moon symbol]] Moon, [[Astrological Mercury symbol]] Mercury, [[Astrological Venus symbol]] Venus, [Astrological Earth symbol] Earth, [[Astrological Saturn symbol]] Saturn, [[Uranus Astrological symbol]] Herschell. 

Signs of the Zodiac. 
[[Astrological Aries symbol]] Aries, the Ram, the Head.
[[Astrological Taurus symbol]] Taurus, the Bull, the neck. 
[[Astrological Gemini symbol]] Gemini, the Twins, the Arms. 
[[Astrological Cancer symbol]] Cancer, the Crab, the Breast. 
[[Astrological Leo symbol]] Leo, the Lion, the Heart. 
[[Astrological Virgo symbol]] Virgo, the Virgin, the Bowels. | 
[[Astrological Libra symbol]] Libra, the Balance, the Reins. 
[[Astrological Scorpio symbol]] Scorpio, the Scorpion, the Secrets. 
[[Astrological Sagittarius symbol]] Sagittarius, the Archer, the Thighs. 
[[Astrological Capricorn symbol]] Capricornus, the Goat, the Knees. 
[[Astrological Aquarius symbol]] Aquarius, the Butler, the Legs. 
[[Astrological Pisces symbol]] Pisces, the Fishes, the Feet. 

Aspects and Nodes. 
[[image]] Conjunction, or in the same longitude.
[[image]] Sextile, or 60 degrees distant.
[[square image]] Quartile, or 90 degrees distant.
[[triange image]] Trine, or 120 degrees distant.
Vc. Quincunx, or 150 degrees distant.
[[image]] Opposition, or 180 degrees distant.
[[horseshoe image]] Ascending Node. 
[[upsidedown horseshoe image]] Descending Node.

Phenomena of the Planets, Aspects, &c. 
Morning and Evening Stars.--Venus ([[male symbol]]) will be Morning Star until March 5, then Evening Star until December 18, then Morning Star until October 2, 1843. Jupiter ([[symbol]]) will be Morning Star until July 10, then Evening Star until Jan. 25, 1843.
Jan. 17--Super. [[symbol]] [[symbol]] [[symbol]]; 20, [[symbol]] enters [[symbol]].
Feb.15--[[symbol]]'s gr. elong; 18, [[symbol]] ent. [[symbol]]; 21, [[symbol]] stat.
March 3--Inferior [[symbol]] [[symbol]] [[symbol]]; 5, Super, [[symbol]] [[symbol]] [[symbol]]; 15, [[symbol]] stat.; 20, [[symbol]] ent. [[symbol]]; 30, [[symbol]]'s gr. elong.
April 4--[[symbol]] [[symbol]] [[symbol]]; 11, [[symbol]] [[symbol]] [[symbol]]; 20, [[symbol]] ent. [[symbol]]; 23, [[symbol]] stat.
May 10--Super. [[symbol]] [[symbol]] [[symbol]]; 10, [[symbol]] stat,; 21, [[symbol]] ent. [[symbol]].
June 11, [[symbol]]'s elong.; 19, [[symbol]] [[symbol]] [[symbol]]; 21, [[symbol]] ent. [[symbol]]; 24, [[symbol]] stat.; 25 [[symbol]] [[symbol]] [[symbol]].
July 3--[[symbol]] stat.; 3, [[symbol]] [[symbol]] [[symbol]]; 8, Inf. [[symbol]] [[symbol]] [[symbol]]; 10, [[symbol]] [[symbol]] [[symbol]]; 19, [[symbol]]stat.; 23, [[symbol]] ent. [[symbol]]; 29, [[symbol]]'s gr. elong.
Aug. 23--[[symbol]] ent. [[symbol]]; 23, Sup. [[symbol]] [[symbol]] [[symbol]].
Sept. 9--[[symbol]] stat.; 11, [[symbol]] stat.; 19, [[symbol]] [[symbol]] [[symbol]]; 23, [[symbol]] ent. [[symbol]].
Oct. 1--[[symbol]] [[symbol]] [[symbol]]; 8, [[symbol]]'s gr. elong.; 8, [[symbol]]'s great. elong.; 20, [[symbol]] stat.; 23, [[symbol]] ent. [[symbol]]; 31, Inf. [[symbol]] [[symbol]] [[symbol]].
Nov. 9--[[symbol]] stat.; 16, [[symbol]]'s gr. elong.; 22, [[symbol]] ent. [[symbol]]; 28, [[symbol]] stat.
Dec. 4--[[symbol]] stat.; 16, [[symbol]] [[symbol]] [[symbol]]; 18, Inferior [[symbol]] [[symbol]]; 21, [[symbol]] ent. [[symbol]]; 28, Sup. [[symbol]] [[symbol]] [[symbol]].