The arterial system (fig. 1) was designed by William Cowper and engraved by Michael Vandergucht for James Drake's Anthropologia nova, London 1707, ii, fig. 20. The venous system (fig. 6) was also engraved by Vandergucht after Cowper's drawing of Giovanni Leoni's preparation of the venous system brought to England by John Evelyn (Aspin 1995, pl. 1a), which Cowper published in the Philosophical Transactions of the Royal Society, no. 280, July and August 1702, pp. 1177-1201. Both these figures were used in Diderot and d'Alembert's Encyclopédie, in the volume of plates published in Paris in 1762, vol. xviii, plates VIII-IX (see catalogue nos 35431 and 35439). The rest of the figures on this plate were also published in the same volume of the Encyclopédie as the "Seconde pl. VIII"