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MDCXLVIII. An almanack for the year of our Lord 1648 : calculated for the longitude of 315 degr. and elevation of the Pole Arctick 42 degr. & 30 min. & may generally serve for the most part of New-England. By Samuel Danforth of Harvard Colledge philomathemat
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Dove· : An almanack for the yeare of our Lord God, 1640: being bissextile or leap-yeare, and from the worlds creation (according to Scaliger, Calvisius, Helvicus and such others) 5589. Calculated properly for the famous Universitie and town of Cambridge, where the pole is elevated 52 degr. 17 min
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30925:1640