The Triumph of Nature Over Art (design for an engraving of 'De Florum Cultura'), ca. 1633, Pen and brown ink, brush and brown wash, over black chalk, 7 13/16 x 5 11/16in. (19. 9 x 14. 5cm), Drawings, Pietro da Cortona (Pietro Berrettini) (Italian, Cortona 1596?1669 Rome), This drawing by the Baroque master Pietro da Cortona is a design for one of the illustrations in a treatise on gardening written by the Jesuit professor, Giovanni Battista Ferrari (1584-1655). The book, titled 'De Florum Cultura' (Rome, 1633), published this design engraved in reverse by Johann Friedrich Greuter (1590-1662)