Technical Bulletin 32

The National Gallery Technical Bulletin is a unique record of research carried out at the National Gallery. Drawing on the combined expertise of curators, conservators, and scientists, it brings together a wealth of information about artists' materials, practices, and techniques.

Volume 32 of the Technical Bulletin is a special issue devoted to the work of Leonardo da Vinci, his training in the workshop of Verrocchio, and his followers and associates. Its publication in print coincides with the National Gallery exhibition Leonardo da Vinci: Painter at the Court of Milan (9 November 2011–5 February 2012).

Volume 32 Contents

• Leonardo in Verrocchio’s Workshop: Re-examining the Technical Evidence
• Leonardo da Vinci’s Virgin of the Rocks: Treatment, Technique and Display
• Painting Practice in Milan in the 1490s: The Influence of Leonardo
• Altered Angels: Two Panels from the Immaculate Conception Altarpiece once in San Francesco Grande, Milan

About the authors

Ashok Roy, Rachel Morrison, David Peggie and Marika Spring are all staff members of the National Gallery Scientific Department; Rachel Billinge, Jill Dunkerton and Larry Keith are all staff members of the National Gallery Conservation Department; Peter Schade is a staff member of the National Gallery Framing Department; Antonio Mazzotta was formerly Curatorial Assistant at the National Gallery.