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23 from 24 hours, and it leaves 7 hours, 34 minutes for the hortet night under Cancer; by the same rule, you will find this 7 hours, 34 minutes, to be the length of the day under Capricorn, and the 16 hours, 26 minutes, the length of the night as was ought.

Problem 10. To find the Meridional Altitude of the Sun on the 3d of October. Bring the Sun's place for that day, found by Problem 2d. to the Meridian, viz. 10° of Libra, and you will find 34° 40' Altitude, by the cale of Meridional Altitude, as required.

Problem 11. To find the Meridional Altitude of the fixed Stars, Fomahaut and Lyra. Bring them repectively to the Meridian, and you will find Fomahaut hath 7° 39' Altitude, and Lyra 77° 4', and Canis Minor hath 44° 37' Meridional Altitude.

Problem 12. What is the Zenith ditance of the Sun on May 13th, at noon? Find the Sun's place 22° of Taurus, bring it to the Meridian, and it hath 56° 30' Meridional Altitude; ubtract this from 90°, and the remainder 33° 30', is the Zenith ditance required.

Problem 13. To find the Sun's Amplitude at riing, on the 15th of February. Bring the Sun's place 10$s$ 27° to the Eatern part of the Horizon, and you will ee it interect the Amplitude of 21° towards the South, the ame with any Star or Planet.

Problem 14. To find the Right Acenion and