The description and use of an universal and perpetual mathematical instrument ... shewing the most expeditious and exact method of solving all practical questions in arithmetick, trigonometry, navigation, dyalling, astronomy, &c. ... / by Benjamin Scott.

  • Scott, Benjamin, -1755.
Date:
1733
Catalogue details

Licence: Public Domain Mark

Credit: The description and use of an universal and perpetual mathematical instrument ... shewing the most expeditious and exact method of solving all practical questions in arithmetick, trigonometry, navigation, dyalling, astronomy, &c. ... / by Benjamin Scott. Source: Wellcome Collection.

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    [37] Rifing, of the Sun, Moon, or Star, is their ap- pearing above the eaftern Horizon. The Time of the Sun’s rifing in all Places, is always equal to half the Length of the Night. Sagittarius, the Archer, or Bowman, thus characterized # : It is the ninth Sign in the Zo- diack, the Sun enters it about the 12th day of November. | | Saturn, the higheit Planet in the Sytem; he performs his Revolution in 29 Years, 167 days 22 hours, 57”: He is 298 T'imes greater than our Earth. In the Inftrument you have his Conjunc- tion with upirer, and is thus charaGterized h. _ Scorpio, the Scorpion, is the 8th Sign in theZo- diack, thus charaéterized M, into which the Sun enters the 13th Day of Oéfober. Setting of the heavenly Bodies, are their go- ng down in the weftern Horizon. Hence the, Dime of Sun-fetting in any Latitude is always e- jual to half the Length of the Day. Signs, are the 12 Signs of the Zodiack, viz. Aries V, Taurus 8, Gemini 1, Cancer B, Leo St, Virgo ™, Libra &, Scorpio i, Sagit- 4 . ° . » ary +, Capricora ‘?, Aquarins foe, Panes se: Southern Signs, are Libra, Scorpio, Sagit- ary, Capricorn, Aquarius, ‘Pifces; becaufe vhile the Sun continues in them, which is from eptember the 12th, a March the 9th follow- ing,
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