Deux essays d'arithmetique politique, touchant les villes et hospitaux de Londres et Paris. Dedie's au Roy, par le chevalier Petty, de la Société Royale
[4], 4 p. ; "The Deux essays, . were written in English, but Hull brings forward evidence shewing that they were first published in French" - Cf. Keynes. ; Copy cropped at foot, affecting text. ; Reproduction of the original in the British Library.