Giovanna Martellotti

after examining the polyptych's individual panels

Based on the unpublished book compiled by Nancy Newhall and Edward Weston

In 1568 the most famous contemporary recorder of artists' lives

Solvent Gels for the Cleaning of Works of Art: The Residue Question calligraphy Giovanna MartellottiDusan Stulik, David Miller, Herant Khanjian, Narayan Khandekar, Richard Wolbers, Janice Carlson, and W. Christian Petersen Edited by Valerie Dorge The cleaning of a work of art often involves removing not only dirt and grime but also unwanted layers of varnish, gilding, and paint from the work's surface. The challenge for conservators lies in finding a cleaning agent that will act on one layer without affecting the layer being preserved and without