Technical Bulletin 22

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 22 of the Technical Bulletin contains the following essays:  

  
• Uccello's Battle of San Romano
  
• Vincenzo Foppa's Adoration of the Kings
  
• Two Panels by Ercole de' Roberti and the Identification of Veluto Morello
  
•  Andrea del Sarto's The Virgin and Child with Saint Elizabeth and Saint John the Baptist
  
• Colour Change in The Conversion of the Magdalen Attributed to Pedro Campaña
  
• A Survey of 19th- and Early 20th-Century Varnish Compositions Found on a Selection of Paintings in the National Gallery Collection
  
• The Mechanical Behaviour and Environmental Response of Paintings to Three Types of Lining Treatment
  

Ashok Roy is Director of Science at the National Gallery.