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in which he labors honorably, intent on investigating the hiding places of nature as it retreats into its depths. Accept therefore, most distinguished Sir, this work which both demands the care of a Maecenas original: Mæcenatis — Gaius Maecenas was a famous Roman patron of the arts; his name became a standard term for a wealthy protector or sponsor of literature and science and strives to demonstrate to you a pledge of my devotion, even though it is drawn from the work of another. For as I examine my own resources, nothing occurs to me that is not unequal to the value of your virtue, or that does not fall far below the greatness of the favors you have shown me. Farewell. Middelburg in Zeeland A city and province in the Netherlands, the 22nd of October original: XI Kalend. Novemb. — The 11th day before the Kalends of November, 1650 original: CIƆ IƆ C L — Roman numeral notation for 1650.