Speculum anni à partu Virginis M DC XLII, or yeare of Our Lord God 1642 : being the second after bissextile or leap yeare, and from the world's creation (according to the accounts in scripture) 5573, which is lesse by 18 years then Scaliger reckoneth : calculated properly for the famous Universitie and town of Cambridge, where the pole is elevated 52 degr. 17 min

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