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NOTE ON THE "TWO ESSAYS."
Petty's Two Essays concerning London and Paris, though first published in French, were originally written in English.[1] They were probably finished between the 17 July, 1686, the day on which was licensed no. 180 of the Philosophical Transactions containing the account of Verbiest's journeys referred to in the first essay[2], and the 26 August of the same year, when the Two Essays were themselves approved.[3]