"The Flayed Angel". Illustration of the muscles of a woman's back by French anatomist Jacques Fabien Gautier d'Agoty (1716-1785), from "Suite de l'Essai d'anatomie en tableaux imprim矇s" (Paris: Gautier, 1745), which is a supplement to his "Essai d'anatomie en tableaux imprim矇s", published in Paris the same year. The image is one of Gautier's most famous. Gautier d'Agoty published a series of anatomy plates using a color mezzotint process which had first been developed by Jacob Christoph Le Blon (1667-1741), in whose workshop Gautier d'Agoty had served as an assistant. In 1737, Le Blon obtained a copyright to publish a complete color anatomy atlas, which never appeared. To Le Blon's process, which used the three colours of red, yellow and blue, Gautier d'Agoty added black and claimed the process to be his own invention. The plates are after dissections prepared by Jacques-Fran癟ois-Marie Duverney (1661-1748), a Parisian surgeon and demonstrator of anatomy and surgery at the Jardin du Roy. Together the two produced a number of large, colorful anatomical atlases, which were noted more for their style and sometimes their shocking appearance than their usefulness to physicians. The monumental "Anatomie g矇n矇rale des visc癡res" is thought to have been printed in Paris in 1752.